117212810017 has 2 divisors, whose sum is σ = 117212810018. Its totient is φ = 117212810016.

The previous prime is 117212809949. The next prime is 117212810063. The reversal of 117212810017 is 710018212711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108609134481 + 8603675536 = 329559^2 + 92756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117212810017 is a prime.

It is not a weakly prime, because it can be changed into another prime (117212810317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58606405008 + 58606405009.

It is an arithmetic number, because the mean of its divisors is an integer number (58606405009).

Almost surely, 2^117212810017 is an apocalyptic number.

It is an amenable number.

117212810017 is a deficient number, since it is larger than the sum of its proper divisors (1).

117212810017 is an equidigital number, since it uses as much as digits as its factorization.

117212810017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 31.

The spelling of 117212810017 in words is "one hundred seventeen billion, two hundred twelve million, eight hundred ten thousand, seventeen".