23131311100 has 36 divisors (see below), whose sum is σ = 50206383808. Its totient is φ = 9250416000.

The previous prime is 23131311097. The next prime is 23131311109. The reversal of 23131311100 is 111313132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131311109) 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, 459160 + ... + 507040.

Almost surely, 2^23131311100 is an apocalyptic number.

23131311100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23131311100 is an abundant number, since it is smaller than the sum of its proper divisors (27075072708).

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

23131311100 is a wasteful number, since it uses less digits than its factorization.

23131311100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52726 (or 52719 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 23131311100 its reverse (111313132), we get a palindrome (23242624232).

The spelling of 23131311100 in words is "twenty-three billion, one hundred thirty-one million, three hundred eleven thousand, one hundred".