23131013100 has 108 divisors (see below), whose sum is σ = 72470033496. Its totient is φ = 5693775360.

The previous prime is 23131013099. The next prime is 23131013119. The reversal of 23131013100 is 131013132.

It is a super-2 number, since 2×23131013100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23131013100.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 177417 + ... + 278816.

Almost surely, 2^23131013100 is an apocalyptic number.

23131013100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131013100 is an abundant number, since it is smaller than the sum of its proper divisors (49339020396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131013100 is a wasteful number, since it uses less digits than its factorization.

23131013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456276 (or 456256 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 23131013100 its reverse (131013132), we get a palindrome (23262026232).

The spelling of 23131013100 in words is "twenty-three billion, one hundred thirty-one million, thirteen thousand, one hundred".