319135815131 has 32 divisors (see below), whose sum is σ = 391946880000. Its totient is φ = 259022909376.

The previous prime is 319135815127. The next prime is 319135815139. The reversal of 319135815131 is 131518531913.

It is not a de Polignac number, because 319135815131 - 2² = 319135815127 is a prime.

It is a super-2 number, since 2×319135815131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319135815139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14958890 + ... + 14980208.

It is an arithmetic number, because the mean of its divisors is an integer number (12248340000).

Almost surely, 2^319135815131 is an apocalyptic number.

319135815131 is a deficient number, since it is larger than the sum of its proper divisors (72811064869).

319135815131 is a wasteful number, since it uses less digits than its factorization.

319135815131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23656 (or 23642 counting only the distinct ones).

The product of its digits is 48600, while the sum is 41.

The spelling of 319135815131 in words is "three hundred nineteen billion, one hundred thirty-five million, eight hundred fifteen thousand, one hundred thirty-one".