31112133304 has 64 divisors (see below), whose sum is σ = 70987392000. Its totient is φ = 12754016352.

The previous prime is 31112133289. The next prime is 31112133329. The reversal of 31112133304 is 40333121113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183372 + ... + 309595.

It is an arithmetic number, because the mean of its divisors is an integer number (1109178000).

Almost surely, 2^31112133304 is an apocalyptic number.

It is an amenable number.

31112133304 is an abundant number, since it is smaller than the sum of its proper divisors (39875258696).

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

31112133304 is a wasteful number, since it uses less digits than its factorization.

31112133304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493017 (or 492999 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31112133304 its reverse (40333121113), we get a palindrome (71445254417).

The spelling of 31112133304 in words is "thirty-one billion, one hundred twelve million, one hundred thirty-three thousand, three hundred four".