321322316304 has 160 divisors (see below), whose sum is σ = 911285673984. Its totient is φ = 96754775040.

The previous prime is 321322316251. The next prime is 321322316311. The reversal of 321322316304 is 403613223123.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72645837 + ... + 72650259.

Almost surely, 2^321322316304 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 321322316304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455642836992).

321322316304 is an abundant number, since it is smaller than the sum of its proper divisors (589963357680).

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

321322316304 is a wasteful number, since it uses less digits than its factorization.

321322316304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 321322316304 its reverse (403613223123), we get a palindrome (724935539427).

The spelling of 321322316304 in words is "three hundred twenty-one billion, three hundred twenty-two million, three hundred sixteen thousand, three hundred four".