31213430044304 has 20 divisors (see below), whose sum is σ = 60477198263664. Its totient is φ = 15606411137568.

The previous prime is 31213430044249. The next prime is 31213430044319. The reversal of 31213430044304 is 40344003431213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18144242 + ... + 19789905.

Almost surely, 2^{31213430044304} is an apocalyptic number.

It is an amenable number.

31213430044304 is a deficient number, since it is larger than the sum of its proper divisors (29263768219360).

31213430044304 is a wasteful number, since it uses less digits than its factorization.

31213430044304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37985582 (or 37985576 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 31213430044304 its reverse (40344003431213), we get a palindrome (71557433475517).

The spelling of 31213430044304 in words is "thirty-one trillion, two hundred thirteen billion, four hundred thirty million, forty-four thousand, three hundred four".