313312131993 has 32 divisors (see below), whose sum is σ = 488658666496. Its totient is φ = 174826185408.

The previous prime is 313312131911. The next prime is 313312132013. The reversal of 313312131993 is 399131213313.

It is not a de Polignac number, because 313312131993 - 2¹⁷ = 313312000921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313312131193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3571371 + ... + 3658047.

It is an arithmetic number, because the mean of its divisors is an integer number (15270583328).

Almost surely, 2^313312131993 is an apocalyptic number.

It is an amenable number.

313312131993 is a deficient number, since it is larger than the sum of its proper divisors (175346534503).

313312131993 is a wasteful number, since it uses less digits than its factorization.

313312131993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90733.

The product of its digits is 39366, while the sum is 39.

The spelling of 313312131993 in words is "three hundred thirteen billion, three hundred twelve million, one hundred thirty-one thousand, nine hundred ninety-three".