30431333239972 has 48 divisors (see below), whose sum is σ = 61206754896000. Its totient is φ = 12968276431104.

The previous prime is 30431333239969. The next prime is 30431333239973. The reversal of 30431333239972 is 27993233313403.

It is not an unprimeable number, because it can be changed into a prime (30431333239973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78138304 + ... + 78526792.

It is an arithmetic number, because the mean of its divisors is an integer number (1275140727000).

Almost surely, 2^{30431333239972} is an apocalyptic number.

It is an amenable number.

30431333239972 is an abundant number, since it is smaller than the sum of its proper divisors (30775421656028).

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

30431333239972 is a wasteful number, since it uses less digits than its factorization.

30431333239972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404308 (or 404306 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 52.

The spelling of 30431333239972 in words is "thirty trillion, four hundred thirty-one billion, three hundred thirty-three million, two hundred thirty-nine thousand, nine hundred seventy-two".