23231525031 has 80 divisors (see below), whose sum is σ = 40981979808. Its totient is φ = 12929414400.

The previous prime is 23231525003. The next prime is 23231525039. The reversal of 23231525031 is 13052513232.

It is a happy number.

23231525031 is a `hidden beast` number, since 2 + 3 + 2 + 3 + 152 + 503 + 1 = 666.

It is not a de Polignac number, because 23231525031 - 2¹⁴ = 23231508647 is a prime.

It is a super-2 number, since 2×23231525031² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23231524986 and 23231525004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231525039) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2276761 + ... + 2286941.

Almost surely, 2^23231525031 is an apocalyptic number.

23231525031 is a deficient number, since it is larger than the sum of its proper divisors (17750454777).

23231525031 is a wasteful number, since it uses less digits than its factorization.

23231525031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10414 (or 10405 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 23231525031 in words is "twenty-three billion, two hundred thirty-one million, five hundred twenty-five thousand, thirty-one".