319304131 has 2 divisors, whose sum is σ = 319304132. Its totient is φ = 319304130.

The previous prime is 319304099. The next prime is 319304137. The reversal of 319304131 is 131403913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 319304131 - 2⁵ = 319304099 is a prime.

It is a super-2 number, since 2×319304131² = 203910256147330322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 319304096 and 319304105.

It is not a weakly prime, because it can be changed into another prime (319304137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159652065 + 159652066.

It is an arithmetic number, because the mean of its divisors is an integer number (159652066).

Almost surely, 2^319304131 is an apocalyptic number.

319304131 is a deficient number, since it is larger than the sum of its proper divisors (1).

319304131 is an equidigital number, since it uses as much as digits as its factorization.

319304131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 319304131 is about 17869.0831046252. The cubic root of 319304131 is about 683.4942191604.

The spelling of 319304131 in words is "three hundred nineteen million, three hundred four thousand, one hundred thirty-one".