3131131039 has 2 divisors, whose sum is σ = 3131131040. Its totient is φ = 3131131038.

The previous prime is 3131131007. The next prime is 3131131067. The reversal of 3131131039 is 9301311313.

3131131039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3131131039 - 2⁵ = 3131131007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3131131079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565565519 + 1565565520.

It is an arithmetic number, because the mean of its divisors is an integer number (1565565520).

Almost surely, 2^3131131039 is an apocalyptic number.

3131131039 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131131039 is an equidigital number, since it uses as much as digits as its factorization.

3131131039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 3131131039 is about 55956.5102467979. The cubic root of 3131131039 is about 1462.9643654010.

The spelling of 3131131039 in words is "three billion, one hundred thirty-one million, one hundred thirty-one thousand, thirty-nine".