30131304312 has 64 divisors (see below), whose sum is σ = 77391781920. Its totient is φ = 9768826368.

The previous prime is 30131304277. The next prime is 30131304323. The reversal of 30131304312 is 21340313103.

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, 3900678 + ... + 3908394.

Almost surely, 2^30131304312 is an apocalyptic number.

It is an amenable number.

30131304312 is an abundant number, since it is smaller than the sum of its proper divisors (47260477608).

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

30131304312 is a wasteful number, since it uses less digits than its factorization.

30131304312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12160 (or 12156 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30131304312 its reverse (21340313103), we get a palindrome (51471617415).

The spelling of 30131304312 in words is "thirty billion, one hundred thirty-one million, three hundred four thousand, three hundred twelve".