31371234832 has 20 divisors (see below), whose sum is σ = 69464877376. Its totient is φ = 13444814880.

The previous prime is 31371234821. The next prime is 31371234833. The reversal of 31371234832 is 23843217313.

It is a junction number, because it is equal to n+sod(n) for n = 31371234791 and 31371234800.

It is not an unprimeable number, because it can be changed into a prime (31371234833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140050044 + ... + 140050267.

Almost surely, 2^31371234832 is an apocalyptic number.

It is an amenable number.

31371234832 is an abundant number, since it is smaller than the sum of its proper divisors (38093642544).

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

31371234832 is a wasteful number, since it uses less digits than its factorization.

31371234832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280100326 (or 280100320 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The spelling of 31371234832 in words is "thirty-one billion, three hundred seventy-one million, two hundred thirty-four thousand, eight hundred thirty-two".