321311013321 has 64 divisors (see below), whose sum is σ = 449714073600. Its totient is φ = 203890176000.

The previous prime is 321311013301. The next prime is 321311013329. The reversal of 321311013321 is 123310113123.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-321311013321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321311013329) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 715614505 + ... + 715614953.

It is an arithmetic number, because the mean of its divisors is an integer number (7026782400).

Almost surely, 2^321311013321 is an apocalyptic number.

It is an amenable number.

321311013321 is a deficient number, since it is larger than the sum of its proper divisors (128403060279).

321311013321 is a wasteful number, since it uses less digits than its factorization.

321311013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 321311013321 its reverse (123310113123), we get a palindrome (444621126444).

The spelling of 321311013321 in words is "three hundred twenty-one billion, three hundred eleven million, thirteen thousand, three hundred twenty-one".