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101223231231 = 350966288953
BaseRepresentation
bin101111001000101011…
…1111110111011111111
3100200021102100221001010
41132101113332323333
53124301121344411
6114300141050303
710212256161213
oct1362127767377
9320242327033
10101223231231
1139a23969901
121774b556993
139712078cc5
144c836ba943
1529768137a6
hex17915feeff

101223231231 has 8 divisors (see below), whose sum is σ = 135229466160. Its totient is φ = 67349575232.

The previous prime is 101223231227. The next prime is 101223231251. The reversal of 101223231231 is 132132322101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101223231231 - 22 = 101223231227 is a prime.

It is a super-2 number, since 2×1012232312312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101223231198 and 101223231207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223231251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33142950 + ... + 33146003.

It is an arithmetic number, because the mean of its divisors is an integer number (16903683270).

Almost surely, 2101223231231 is an apocalyptic number.

101223231231 is a deficient number, since it is larger than the sum of its proper divisors (34006234929).

101223231231 is an equidigital number, since it uses as much as digits as its factorization.

101223231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66289465.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 101223231231 its reverse (132132322101), we get a palindrome (233355553332).

The spelling of 101223231231 in words is "one hundred one billion, two hundred twenty-three million, two hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 509 1527 66288953 198866859 33741077077 101223231231