313330121321 has 32 divisors (see below), whose sum is σ = 370424947200. Its totient is φ = 259450283520.

The previous prime is 313330121281. The next prime is 313330121333. The reversal of 313330121321 is 123121033313.

It is a cyclic number.

It is not a de Polignac number, because 313330121321 - 2²² = 313325927017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313330121341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96318731 + ... + 96321983.

It is an arithmetic number, because the mean of its divisors is an integer number (11575779600).

Almost surely, 2^313330121321 is an apocalyptic number.

It is an amenable number.

313330121321 is a deficient number, since it is larger than the sum of its proper divisors (57094825879).

313330121321 is a wasteful number, since it uses less digits than its factorization.

313330121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 313330121321 its reverse (123121033313), we get a palindrome (436451154634).

The spelling of 313330121321 in words is "three hundred thirteen billion, three hundred thirty million, one hundred twenty-one thousand, three hundred twenty-one".