231131033100112 has 30 divisors (see below), whose sum is σ = 475708054078238. Its totient is φ = 108767544986112.

The previous prime is 231131033100109. The next prime is 231131033100131. The reversal of 231131033100112 is 211001330131132.

It can be written as a sum of positive squares in 3 ways, for example, as 98292868604176 + 132838164495936 = 9914276^2 + 11525544^2 .

It is a super-2 number, since 2×231131033100112² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24992537883 + ... + 24992547130.

Almost surely, 2^{231131033100112} is an apocalyptic number.

It is an amenable number.

231131033100112 is an abundant number, since it is smaller than the sum of its proper divisors (244577020978126).

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

231131033100112 is a wasteful number, since it uses less digits than its factorization.

231131033100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49985085055 (or 49985085032 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 231131033100112 its reverse (211001330131132), we get a palindrome (442132363231244).

The spelling of 231131033100112 in words is "two hundred thirty-one trillion, one hundred thirty-one billion, thirty-three million, one hundred thousand, one hundred twelve".