31016929871 has 2 divisors, whose sum is σ = 31016929872. Its totient is φ = 31016929870.

The previous prime is 31016929859. The next prime is 31016929877. The reversal of 31016929871 is 17892961013.

It is a strong prime.

It is an emirp because it is prime and its reverse (17892961013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31016929871 - 2³⁰ = 29943188047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31016929877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15508464935 + 15508464936.

It is an arithmetic number, because the mean of its divisors is an integer number (15508464936).

Almost surely, 2^31016929871 is an apocalyptic number.

31016929871 is a deficient number, since it is larger than the sum of its proper divisors (1).

31016929871 is an equidigital number, since it uses as much as digits as its factorization.

31016929871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 31016929871 in words is "thirty-one billion, sixteen million, nine hundred twenty-nine thousand, eight hundred seventy-one".