31013312159 has 2 divisors, whose sum is σ = 31013312160. Its totient is φ = 31013312158.

The previous prime is 31013312111. The next prime is 31013312167. The reversal of 31013312159 is 95121331013.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013312159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31013312459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506656079 + 15506656080.

It is an arithmetic number, because the mean of its divisors is an integer number (15506656080).

Almost surely, 2^31013312159 is an apocalyptic number.

31013312159 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013312159 is an equidigital number, since it uses as much as digits as its factorization.

31013312159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 31013312159 in words is "thirty-one billion, thirteen million, three hundred twelve thousand, one hundred fifty-nine".