6319311139 has 2 divisors, whose sum is σ = 6319311140. Its totient is φ = 6319311138.

The previous prime is 6319311133. The next prime is 6319311143. The reversal of 6319311139 is 9311139136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6319311139 - 2²³ = 6310922531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6319311098 and 6319311107.

It is not a weakly prime, because it can be changed into another prime (6319311133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3159655569 + 3159655570.

It is an arithmetic number, because the mean of its divisors is an integer number (3159655570).

Almost surely, 2^6319311139 is an apocalyptic number.

6319311139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6319311139 is an equidigital number, since it uses as much as digits as its factorization.

6319311139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13122, while the sum is 37.

The square root of 6319311139 is about 79494.0949945340. The cubic root of 6319311139 is about 1848.7999169830.

It can be divided in two parts, 631 and 9311139, that added together give a triangular number (9311770 = T₄₃₁₅).

The spelling of 6319311139 in words is "six billion, three hundred nineteen million, three hundred eleven thousand, one hundred thirty-nine".