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10811023131 = 34187894497
BaseRepresentation
bin10100001000110001…
…10001111100011011
31000220102211212201010
422010120301330123
5134120110220011
64544433425003
7531623115606
oct120430617433
930812755633
1010811023131
1146485a4767
12211870b163
131033a2c80c
14747b5b33d
154341b11a6
hex284631f1b

10811023131 has 8 divisors (see below), whose sum is σ = 14766275664. Its totient is φ = 7031559680.

The previous prime is 10811023121. The next prime is 10811023141. The reversal of 10811023131 is 13132011801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10811023121) and next prime (10811023141).

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 10811023131 - 215 = 10810990363 is a prime.

It is a super-2 number, since 2×108110231312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10811023098 and 10811023107.

It is not an unprimeable number, because it can be changed into a prime (10811023121) 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, 43947126 + ... + 43947371.

It is an arithmetic number, because the mean of its divisors is an integer number (1845784458).

Almost surely, 210811023131 is an apocalyptic number.

10811023131 is a deficient number, since it is larger than the sum of its proper divisors (3955252533).

10811023131 is an equidigital number, since it uses as much as digits as its factorization.

10811023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87894541.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 10811023131 its reverse (13132011801), we get a palindrome (23943034932).

The spelling of 10811023131 in words is "ten billion, eight hundred eleven million, twenty-three thousand, one hundred thirty-one".

Divisors: 1 3 41 123 87894497 263683491 3603674377 10811023131