231031001120 has 48 divisors (see below), whose sum is σ = 555061792320. Its totient is φ = 90846084864.

The previous prime is 231031001119. The next prime is 231031001137. The reversal of 231031001120 is 21100130132.

It is a junction number, because it is equal to n+sod(n) for n = 231031001095 and 231031001104.

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, 12227372 + ... + 12246251.

It is an arithmetic number, because the mean of its divisors is an integer number (11563787340).

Almost surely, 2^231031001120 is an apocalyptic number.

231031001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231031001120 is an abundant number, since it is smaller than the sum of its proper divisors (324030791200).

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

231031001120 is a wasteful number, since it uses less digits than its factorization.

231031001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24473697 (or 24473689 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 231031001120 its reverse (21100130132), we get a palindrome (252131131252).

The spelling of 231031001120 in words is "two hundred thirty-one billion, thirty-one million, one thousand, one hundred twenty".