319131631316 has 6 divisors (see below), whose sum is σ = 558480354810. Its totient is φ = 159565815656.

The previous prime is 319131631303. The next prime is 319131631349. The reversal of 319131631316 is 613136131913.

It can be written as a sum of positive squares in only one way, i.e., 263789068816 + 55342562500 = 513604^2 + 235250^2 .

It is a super-2 number, since 2×319131631316² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 319131631316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39891453911 + ... + 39891453918.

It is an arithmetic number, because the mean of its divisors is an integer number (93080059135).

Almost surely, 2^319131631316 is an apocalyptic number.

It is an amenable number.

319131631316 is a deficient number, since it is larger than the sum of its proper divisors (239348723494).

319131631316 is a wasteful number, since it uses less digits than its factorization.

319131631316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79782907833 (or 79782907831 counting only the distinct ones).

The product of its digits is 26244, while the sum is 38.

The spelling of 319131631316 in words is "three hundred nineteen billion, one hundred thirty-one million, six hundred thirty-one thousand, three hundred sixteen".