31031022231132 has 96 divisors (see below), whose sum is σ = 92192747028480. Its totient is φ = 7888516278720.

The previous prime is 31031022231109. The next prime is 31031022231161. The reversal of 31031022231132 is 23113222013013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357226332 + ... + 357313187.

It is an arithmetic number, because the mean of its divisors is an integer number (960341114880).

Almost surely, 2^{31031022231132} is an apocalyptic number.

It is an amenable number.

31031022231132 is an abundant number, since it is smaller than the sum of its proper divisors (61161724797348).

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

31031022231132 is a wasteful number, since it uses less digits than its factorization.

31031022231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714539591 (or 714539589 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31031022231132 its reverse (23113222013013), we get a palindrome (54144244244145).

The spelling of 31031022231132 in words is "thirty-one trillion, thirty-one billion, twenty-two million, two hundred thirty-one thousand, one hundred thirty-two".