23131013012 has 24 divisors (see below), whose sum is σ = 41392871520. Its totient is φ = 11306645280.

The previous prime is 23131012999. The next prime is 23131013027. The reversal of 23131013012 is 21031013132.

It is a super-2 number, since 2×23131013012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228038 + ... + 313469.

It is an arithmetic number, because the mean of its divisors is an integer number (1724702980).

Almost surely, 2^23131013012 is an apocalyptic number.

It is an amenable number.

23131013012 is a deficient number, since it is larger than the sum of its proper divisors (18261858508).

23131013012 is a wasteful number, since it uses less digits than its factorization.

23131013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541751 (or 541749 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23131013012 its reverse (21031013132), we get a palindrome (44162026144).

The spelling of 23131013012 in words is "twenty-three billion, one hundred thirty-one million, thirteen thousand, twelve".