321130835972388 has 192 divisors, whose sum is σ = 899596208896000. Its totient is φ = 98480068323840.

The previous prime is 321130835972363. The next prime is 321130835972411. The reversal of 321130835972388 is 883279538031123.

321130835972388 is a `hidden beast` number, since 3 + 2 + 1 + 1 + 3 + 0 + 8 + 3 + 597 + 2 + 38 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1049908518 + ... + 1050214338.

Almost surely, 2^{321130835972388} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321130835972388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449798104448000).

321130835972388 is an abundant number, since it is smaller than the sum of its proper divisors (578465372923612).

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

321130835972388 is a wasteful number, since it uses less digits than its factorization.

321130835972388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308339 (or 308331 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 321130835972388 in words is "three hundred twenty-one trillion, one hundred thirty billion, eight hundred thirty-five million, nine hundred seventy-two thousand, three hundred eighty-eight".