319113128 has 16 divisors (see below), whose sum is σ = 600149760. Its totient is φ = 159073200.

The previous prime is 319113107. The next prime is 319113167. The reversal of 319113128 is 821311913.

It is a self number, because there is not a number n which added to its sum of digits gives 319113128.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57608 + ... + 62903.

It is an arithmetic number, because the mean of its divisors is an integer number (37509360).

Almost surely, 2^319113128 is an apocalyptic number.

It is an amenable number.

319113128 is a deficient number, since it is larger than the sum of its proper divisors (281036632).

319113128 is a wasteful number, since it uses less digits than its factorization.

319113128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120848 (or 120844 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 319113128 is about 17863.7377947618. The cubic root of 319113128 is about 683.3579066052.

The spelling of 319113128 in words is "three hundred nineteen million, one hundred thirteen thousand, one hundred twenty-eight".