12313022013 has 12 divisors (see below), whose sum is σ = 17787779100. Its totient is φ = 8207618496.

The previous prime is 12313022003. The next prime is 12313022041. The reversal of 12313022013 is 31022031321.

It can be written as a sum of positive squares in 2 ways, for example, as 5784058809 + 6528963204 = 76053^2 + 80802^2 .

It is not a de Polignac number, because 12313022013 - 2⁴ = 12313021997 is a prime.

It is a super-2 number, since 2×12313022013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313022003) 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, 11688 + ... + 157361.

It is an arithmetic number, because the mean of its divisors is an integer number (1482314925).

Almost surely, 2^12313022013 is an apocalyptic number.

It is an amenable number.

12313022013 is a deficient number, since it is larger than the sum of its proper divisors (5474757087).

12313022013 is a wasteful number, since it uses less digits than its factorization.

12313022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177148 (or 177145 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12313022013 its reverse (31022031321), we get a palindrome (43335053334).

The spelling of 12313022013 in words is "twelve billion, three hundred thirteen million, twenty-two thousand, thirteen".