117708311971 has 2 divisors, whose sum is σ = 117708311972. Its totient is φ = 117708311970.

The previous prime is 117708311969. The next prime is 117708311989. The reversal of 117708311971 is 179113807711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117708311971 - 2¹ = 117708311969 is a prime.

Together with 117708311969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (117708311471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58854155985 + 58854155986.

It is an arithmetic number, because the mean of its divisors is an integer number (58854155986).

Almost surely, 2^117708311971 is an apocalyptic number.

117708311971 is a deficient number, since it is larger than the sum of its proper divisors (1).

117708311971 is an equidigital number, since it uses as much as digits as its factorization.

117708311971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 46.

The spelling of 117708311971 in words is "one hundred seventeen billion, seven hundred eight million, three hundred eleven thousand, nine hundred seventy-one".