231313111000 has 64 divisors (see below), whose sum is σ = 541396028160. Its totient is φ = 92504160000.

The previous prime is 231313110961. The next prime is 231313111027. The reversal of 231313111000 is 111313132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4807060 + ... + 4854940.

It is an arithmetic number, because the mean of its divisors is an integer number (8459312940).

Almost surely, 2^231313111000 is an apocalyptic number.

231313111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231313111000 is an abundant number, since it is smaller than the sum of its proper divisors (310082917160).

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

231313111000 is a wasteful number, since it uses less digits than its factorization.

231313111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52733 (or 52719 counting only the distinct ones).

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

Adding to 231313111000 its reverse (111313132), we get a palindrome (231424424132).

The spelling of 231313111000 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred eleven thousand".