31313102039 has 2 divisors, whose sum is σ = 31313102040. Its totient is φ = 31313102038.

The previous prime is 31313101969. The next prime is 31313102053. The reversal of 31313102039 is 93020131313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31313102039 - 2²⁰ = 31312053463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31313101999 and 31313102017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31313102059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656551019 + 15656551020.

It is an arithmetic number, because the mean of its divisors is an integer number (15656551020).

Almost surely, 2^31313102039 is an apocalyptic number.

31313102039 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313102039 is an equidigital number, since it uses as much as digits as its factorization.

31313102039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 31313102039 in words is "thirty-one billion, three hundred thirteen million, one hundred two thousand, thirty-nine".