313121344231 has 8 divisors (see below), whose sum is σ = 329956225200. Its totient is φ = 296321944320.

The previous prime is 313121344219. The next prime is 313121344243. The reversal of 313121344231 is 132443121313.

It is an interprime number because it is at equal distance from previous prime (313121344219) and next prime (313121344243).

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 313121344231 - 2⁷ = 313121344103 is a prime.

It is a super-2 number, since 2×313121344231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313121344231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313121344271) 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, 8852140 + ... + 8887441.

It is an arithmetic number, because the mean of its divisors is an integer number (41244528150).

Almost surely, 2^313121344231 is an apocalyptic number.

313121344231 is a deficient number, since it is larger than the sum of its proper divisors (16834880969).

313121344231 is a wasteful number, since it uses less digits than its factorization.

313121344231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17740529.

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

Adding to 313121344231 its reverse (132443121313), we get a palindrome (445564465544).

The spelling of 313121344231 in words is "three hundred thirteen billion, one hundred twenty-one million, three hundred forty-four thousand, two hundred thirty-one".