319111139 has 2 divisors, whose sum is σ = 319111140. Its totient is φ = 319111138.

The previous prime is 319111103. The next prime is 319111141. The reversal of 319111139 is 931111913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 319111139 - 2¹⁶ = 319045603 is a prime.

Together with 319111141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (319111189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159555569 + 159555570.

It is an arithmetic number, because the mean of its divisors is an integer number (159555570).

Almost surely, 2^319111139 is an apocalyptic number.

319111139 is a deficient number, since it is larger than the sum of its proper divisors (1).

319111139 is an equidigital number, since it uses as much as digits as its factorization.

319111139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729, while the sum is 29.

The square root of 319111139 is about 17863.6821232354. The cubic root of 319111139 is about 683.3564868353.

The spelling of 319111139 in words is "three hundred nineteen million, one hundred eleven thousand, one hundred thirty-nine".