31014815047 has 2 divisors, whose sum is σ = 31014815048. Its totient is φ = 31014815046.

The previous prime is 31014815033. The next prime is 31014815059. The reversal of 31014815047 is 74051841013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31014815047 - 2¹⁹ = 31014290759 is a prime.

It is a super-2 number, since 2×31014815047² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31014015047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15507407523 + 15507407524.

It is an arithmetic number, because the mean of its divisors is an integer number (15507407524).

Almost surely, 2^31014815047 is an apocalyptic number.

31014815047 is a deficient number, since it is larger than the sum of its proper divisors (1).

31014815047 is an equidigital number, since it uses as much as digits as its factorization.

31014815047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 31014815047 in words is "thirty-one billion, fourteen million, eight hundred fifteen thousand, forty-seven".