117145130971 has 16 divisors (see below), whose sum is σ = 135547632000. Its totient is φ = 100120363200.

The previous prime is 117145130957. The next prime is 117145131031. The reversal of 117145130971 is 179031541711.

It is not a de Polignac number, because 117145130971 - 2¹³ = 117145122779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117145130471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2111946 + ... + 2166703.

It is an arithmetic number, because the mean of its divisors is an integer number (8471727000).

Almost surely, 2^117145130971 is an apocalyptic number.

117145130971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117145130971 is a deficient number, since it is larger than the sum of its proper divisors (18402501029).

117145130971 is a wasteful number, since it uses less digits than its factorization.

117145130971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278810.

The product of its (nonzero) digits is 26460, while the sum is 40.

The spelling of 117145130971 in words is "one hundred seventeen billion, one hundred forty-five million, one hundred thirty thousand, nine hundred seventy-one".