31375316313 has 24 divisors (see below), whose sum is σ = 49582424736. Its totient is φ = 18960523200.

The previous prime is 31375316299. The next prime is 31375316321. The reversal of 31375316313 is 31361357313.

31375316313 is a `hidden beast` number, since 3 + 13 + 7 + 5 + 3 + 1 + 631 + 3 = 666.

It is not a de Polignac number, because 31375316313 - 2⁵ = 31375316281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31375316333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422308 + ... + 491013.

It is an arithmetic number, because the mean of its divisors is an integer number (2065934364).

Almost surely, 2^31375316313 is an apocalyptic number.

31375316313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31375316313 is a deficient number, since it is larger than the sum of its proper divisors (18207108423).

31375316313 is a wasteful number, since it uses less digits than its factorization.

31375316313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913685 (or 913682 counting only the distinct ones).

The product of its digits is 51030, while the sum is 36.

The spelling of 31375316313 in words is "thirty-one billion, three hundred seventy-five million, three hundred sixteen thousand, three hundred thirteen".