231313331130120 has 48 divisors (see below), whose sum is σ = 751768326174060. Its totient is φ = 61683554967936.

The previous prime is 231313331130061. The next prime is 231313331130169. The reversal of 231313331130120 is 21031133313132.

231313331130120 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 1 + 3 + 331 + 1 + 301 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 214710819284196 + 16602511845924 = 14653014^2 + 4074618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321268515099 + ... + 321268515818.

Almost surely, 2^{231313331130120} is an apocalyptic number.

231313331130120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231313331130120 is an abundant number, since it is smaller than the sum of its proper divisors (520454995043940).

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

231313331130120 is a wasteful number, since it uses less digits than its factorization.

231313331130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642537030934 (or 642537030927 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 231313331130120 its reverse (21031133313132), we get a palindrome (252344464443252).

The spelling of 231313331130120 in words is "two hundred thirty-one trillion, three hundred thirteen billion, three hundred thirty-one million, one hundred thirty thousand, one hundred twenty".