321554330535012 has 24 divisors (see below), whose sum is σ = 750311415781536. Its totient is φ = 107182208578368.

The previous prime is 321554330534939. The next prime is 321554330535059. The reversal of 321554330535012 is 210535033455123.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320511618 + ... + 321513305.

It is an arithmetic number, because the mean of its divisors is an integer number (31262975657564).

Almost surely, 2^{321554330535012} is an apocalyptic number.

It is an amenable number.

321554330535012 is an abundant number, since it is smaller than the sum of its proper divisors (428757085246524).

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

321554330535012 is a wasteful number, since it uses less digits than its factorization.

321554330535012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642066667 (or 642066665 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 42.

The spelling of 321554330535012 in words is "three hundred twenty-one trillion, five hundred fifty-four billion, three hundred thirty million, five hundred thirty-five thousand, twelve".