321530105604 has 12 divisors (see below), whose sum is σ = 750236913104. Its totient is φ = 107176701864.

The previous prime is 321530105581. The next prime is 321530105657. The reversal of 321530105604 is 406501035123.

It is a tau number, because it is divible by the number of its divisors (12).

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, 13397087722 + ... + 13397087745.

Almost surely, 2^321530105604 is an apocalyptic number.

It is an amenable number.

321530105604 is an abundant number, since it is smaller than the sum of its proper divisors (428706807500).

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

321530105604 is a wasteful number, since it uses less digits than its factorization.

321530105604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26794175474 (or 26794175472 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 321530105604 in words is "three hundred twenty-one billion, five hundred thirty million, one hundred five thousand, six hundred four".