31031131100304 has 40 divisors (see below), whose sum is σ = 80180991729952. Its totient is φ = 10341486316800.

The previous prime is 31031131100297. The next prime is 31031131100323. The reversal of 31031131100304 is 40300113113013.

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, 69275989 + ... + 69722484.

Almost surely, 2^{31031131100304} is an apocalyptic number.

It is an amenable number.

31031131100304 is an abundant number, since it is smaller than the sum of its proper divisors (49149860629648).

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

31031131100304 is a wasteful number, since it uses less digits than its factorization.

31031131100304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139003135 (or 139003129 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31031131100304 its reverse (40300113113013), we get a palindrome (71331244213317).

The spelling of 31031131100304 in words is "thirty-one trillion, thirty-one billion, one hundred thirty-one million, one hundred thousand, three hundred four".