5131313212 has 24 divisors (see below), whose sum is σ = 9071844320. Its totient is φ = 2539408320.

The previous prime is 5131313203. The next prime is 5131313323. The reversal of 5131313212 is 2123131315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439393 + ... + 450919.

Almost surely, 2^5131313212 is an apocalyptic number.

It is an amenable number.

5131313212 is a deficient number, since it is larger than the sum of its proper divisors (3940531108).

5131313212 is a wasteful number, since it uses less digits than its factorization.

5131313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12661 (or 12659 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 5131313212 is about 71633.1851309154. The cubic root of 5131313212 is about 1724.8162752727.

Adding to 5131313212 its reverse (2123131315), we get a palindrome (7254444527).

The spelling of 5131313212 in words is "five billion, one hundred thirty-one million, three hundred thirteen thousand, two hundred twelve".