313211230031 has 12 divisors (see below), whose sum is σ = 364368886200. Its totient is φ = 268451200080.

The previous prime is 313211230009. The next prime is 313211230141. The reversal of 313211230031 is 130032112313.

It is a de Polignac number, because none of the positive numbers 2^k-313211230031 is a prime.

It is a super-2 number, since 2×313211230031² (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 = 313211229985 and 313211230012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313211230531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 712145 + ... + 1064693.

It is an arithmetic number, because the mean of its divisors is an integer number (30364073850).

Almost surely, 2^313211230031 is an apocalyptic number.

313211230031 is a deficient number, since it is larger than the sum of its proper divisors (51157656169).

313211230031 is a wasteful number, since it uses less digits than its factorization.

313211230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370694 (or 370687 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 313211230031 its reverse (130032112313), we get a palindrome (443243342344).

The spelling of 313211230031 in words is "three hundred thirteen billion, two hundred eleven million, two hundred thirty thousand, thirty-one".