313222121323021 has 8 divisors (see below), whose sum is σ = 313641206875584. Its totient is φ = 312803129218080.

The previous prime is 313222121322959. The next prime is 313222121323049. The reversal of 313222121323021 is 120323121222313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313222121323021 - 2³⁵ = 313187761584653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313222121323051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16652440 + ... + 30062401.

It is an arithmetic number, because the mean of its divisors is an integer number (39205150859448).

Almost surely, 2^{313222121323021} is an apocalyptic number.

It is an amenable number.

313222121323021 is a deficient number, since it is larger than the sum of its proper divisors (419085552563).

313222121323021 is an equidigital number, since it uses as much as digits as its factorization.

313222121323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46723811.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 313222121323021 its reverse (120323121222313), we get a palindrome (433545242545334).

The spelling of 313222121323021 in words is "three hundred thirteen trillion, two hundred twenty-two billion, one hundred twenty-one million, three hundred twenty-three thousand, twenty-one".