117212810171 has 2 divisors, whose sum is σ = 117212810172. Its totient is φ = 117212810170.

The previous prime is 117212810161. The next prime is 117212810177. The reversal of 117212810171 is 171018212711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117212810171 - 2³⁰ = 116139068347 is a prime.

It is not a weakly prime, because it can be changed into another prime (117212810177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58606405085 + 58606405086.

It is an arithmetic number, because the mean of its divisors is an integer number (58606405086).

Almost surely, 2^117212810171 is an apocalyptic number.

117212810171 is a deficient number, since it is larger than the sum of its proper divisors (1).

117212810171 is an equidigital number, since it uses as much as digits as its factorization.

117212810171 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 32.

The spelling of 117212810171 in words is "one hundred seventeen billion, two hundred twelve million, eight hundred ten thousand, one hundred seventy-one".