23231033231 has 12 divisors (see below), whose sum is σ = 27754231608. Its totient is φ = 19374142032.

The previous prime is 23231033227. The next prime is 23231033233. The reversal of 23231033231 is 13233013232.

It is not a de Polignac number, because 23231033231 - 2² = 23231033227 is a prime.

It is a super-2 number, since 2×23231033231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23231033197 and 23231033206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231033233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6404981 + ... + 6408606.

It is an arithmetic number, because the mean of its divisors is an integer number (2312852634).

Almost surely, 2^23231033231 is an apocalyptic number.

23231033231 is a deficient number, since it is larger than the sum of its proper divisors (4523198377).

23231033231 is a wasteful number, since it uses less digits than its factorization.

23231033231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813638 (or 12813631 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23231033231 its reverse (13233013232), we get a palindrome (36464046463).

The spelling of 23231033231 in words is "twenty-three billion, two hundred thirty-one million, thirty-three thousand, two hundred thirty-one".