313323122131 has 4 divisors (see below), whose sum is σ = 313501249600. Its totient is φ = 313144994664.

The previous prime is 313323122053. The next prime is 313323122207. The reversal of 313323122131 is 131221323313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131221323313 = 3583 ⋅36623311.

It is a cyclic number.

It is not a de Polignac number, because 313323122131 - 2¹⁵ = 313323089363 is a prime.

It is a super-2 number, since 2×313323122131² (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 = 313323122096 and 313323122105.

It is not an unprimeable number, because it can be changed into a prime (313323192131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89061096 + ... + 89064613.

It is an arithmetic number, because the mean of its divisors is an integer number (78375312400).

Almost surely, 2^313323122131 is an apocalyptic number.

313323122131 is a deficient number, since it is larger than the sum of its proper divisors (178127469).

313323122131 is a wasteful number, since it uses less digits than its factorization.

313323122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178127468.

The product of its digits is 1944, while the sum is 25.

Adding to 313323122131 its reverse (131221323313), we get a palindrome (444544445444).

The spelling of 313323122131 in words is "three hundred thirteen billion, three hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-one".