31317704699863 has 2 divisors, whose sum is σ = 31317704699864. Its totient is φ = 31317704699862.

The previous prime is 31317704699843. The next prime is 31317704699933. The reversal of 31317704699863 is 36899640771313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31317704699863 - 2⁴¹ = 29118681444311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31317704699833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15658852349931 + 15658852349932.

It is an arithmetic number, because the mean of its divisors is an integer number (15658852349932).

Almost surely, 2^{31317704699863} is an apocalyptic number.

31317704699863 is a deficient number, since it is larger than the sum of its proper divisors (1).

31317704699863 is an equidigital number, since it uses as much as digits as its factorization.

31317704699863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123451776, while the sum is 67.

The spelling of 31317704699863 in words is "thirty-one trillion, three hundred seventeen billion, seven hundred four million, six hundred ninety-nine thousand, eight hundred sixty-three".