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103131100401 = 37238911932011
BaseRepresentation
bin110000000001100010…
…1111011010011110001
3100212012101100201112020
41200003011323103301
53142203030203101
6115213333222053
710310453614050
oct1400305732361
9325171321466
10103131100401
113a8128aa18a
1217ba2491929
139957406584
144dc4c32397
152a39078136
hex180317b4f1

103131100401 has 64 divisors (see below), whose sum is σ = 166048911360. Its totient is φ = 55662013440.

The previous prime is 103131100381. The next prime is 103131100409. The reversal of 103131100401 is 104001131301.

It is not a de Polignac number, because 103131100401 - 234 = 85951231217 is a prime.

It is a super-2 number, since 2×1031311004012 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103131100409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51282486 + ... + 51284496.

It is an arithmetic number, because the mean of its divisors is an integer number (2594514240).

Almost surely, 2103131100401 is an apocalyptic number.

It is an amenable number.

103131100401 is a deficient number, since it is larger than the sum of its proper divisors (62917810959).

103131100401 is a wasteful number, since it uses less digits than its factorization.

103131100401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 103131100401 its reverse (104001131301), we get a palindrome (207132231702).

The spelling of 103131100401 in words is "one hundred three billion, one hundred thirty-one million, one hundred thousand, four hundred one".

Divisors: 1 3 7 21 23 69 89 161 267 483 623 1193 1869 2011 2047 3579 6033 6141 8351 14077 14329 25053 27439 42231 42987 46253 82317 106177 138759 178979 192073 318531 323771 536937 576219 743239 971313 1252853 2229717 2399123 2442071 3758559 4116517 7197369 7326213 12349551 16793861 17094497 28815619 50381583 51283491 55179829 86446857 165539487 213521947 386258803 640565841 1158776409 1494653629 4483960887 4911004781 14733014343 34377033467 103131100401