117142865171 has 4 divisors (see below), whose sum is σ = 120308888592. Its totient is φ = 113976841752.

The previous prime is 117142865113. The next prime is 117142865201. The reversal of 117142865171 is 171568241711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171568241711 = 348241 ⋅492671.

It is a cyclic number.

It is not a de Polignac number, because 117142865171 - 2²⁶ = 117075756307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117142864171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583011655 + ... + 1583011728.

It is an arithmetic number, because the mean of its divisors is an integer number (30077222148).

Almost surely, 2^117142865171 is an apocalyptic number.

117142865171 is a deficient number, since it is larger than the sum of its proper divisors (3166023421).

117142865171 is an equidigital number, since it uses as much as digits as its factorization.

117142865171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166023420.

The product of its digits is 94080, while the sum is 44.

The spelling of 117142865171 in words is "one hundred seventeen billion, one hundred forty-two million, eight hundred sixty-five thousand, one hundred seventy-one".