313122211031 has 8 divisors (see below), whose sum is σ = 358364451744. Its totient is φ = 268007594400.

The previous prime is 313122211019. The next prime is 313122211033. The reversal of 313122211031 is 130112221313.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-313122211031 is a prime.

It is a super-2 number, since 2×313122211031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313122210994 and 313122211012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313122211033) 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, 31900760 + ... + 31910573.

It is an arithmetic number, because the mean of its divisors is an integer number (44795556468).

Almost surely, 2^313122211031 is an apocalyptic number.

313122211031 is a deficient number, since it is larger than the sum of its proper divisors (45242240713).

313122211031 is an equidigital number, since it uses as much as digits as its factorization.

313122211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63812041.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313122211031 its reverse (130112221313), we get a palindrome (443234432344).

The spelling of 313122211031 in words is "three hundred thirteen billion, one hundred twenty-two million, two hundred eleven thousand, thirty-one".