117158009923 has 4 divisors (see below), whose sum is σ = 117237012088. Its totient is φ = 117079007760.

The previous prime is 117158009867. The next prime is 117158009929. The reversal of 117158009923 is 329900851711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329900851711 = 121501 ⋅2715211.

It is a cyclic number.

It is not a de Polignac number, because 117158009923 - 2¹³ = 117158001731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117158009929) 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, 39498858 + ... + 39501823.

It is an arithmetic number, because the mean of its divisors is an integer number (29309253022).

Almost surely, 2^117158009923 is an apocalyptic number.

117158009923 is a deficient number, since it is larger than the sum of its proper divisors (79002165).

117158009923 is an equidigital number, since it uses as much as digits as its factorization.

117158009923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79002164.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 117158009923 in words is "one hundred seventeen billion, one hundred fifty-eight million, nine thousand, nine hundred twenty-three".