313111012231 has 16 divisors (see below), whose sum is σ = 319731703200. Its totient is φ = 306535638528.

The previous prime is 313111012213. The next prime is 313111012273. The reversal of 313111012231 is 132210111313.

It is a cyclic number.

It is not a de Polignac number, because 313111012231 - 2⁷ = 313111012103 is a prime.

It is a super-2 number, since 2×313111012231² (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 = 313111012199 and 313111012208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313111012211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27809155 + ... + 27820411.

It is an arithmetic number, because the mean of its divisors is an integer number (19983231450).

Almost surely, 2^313111012231 is an apocalyptic number.

313111012231 is a deficient number, since it is larger than the sum of its proper divisors (6620690969).

313111012231 is a wasteful number, since it uses less digits than its factorization.

313111012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13218.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 313111012231 its reverse (132210111313), we get a palindrome (445321123544).

The spelling of 313111012231 in words is "three hundred thirteen billion, one hundred eleven million, twelve thousand, two hundred thirty-one".