12313131002 has 8 divisors (see below), whose sum is σ = 18587338356. Its totient is φ = 6117351552.

The previous prime is 12313131001. The next prime is 12313131041. The reversal of 12313131002 is 20013131321.

It can be written as a sum of positive squares in 2 ways, for example, as 11259544321 + 1053586681 = 106111^2 + 32459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12313131002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12313131001) 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, 19606583 + ... + 19607210.

Almost surely, 2^12313131002 is an apocalyptic number.

12313131002 is a deficient number, since it is larger than the sum of its proper divisors (6274207354).

12313131002 is a wasteful number, since it uses less digits than its factorization.

12313131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39213952.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12313131002 its reverse (20013131321), we get a palindrome (32326262323).

The spelling of 12313131002 in words is "twelve billion, three hundred thirteen million, one hundred thirty-one thousand, two".