23118479999 has 4 divisors (see below), whose sum is σ = 23127099336. Its totient is φ = 23109860664.

The previous prime is 23118479983. The next prime is 23118480001. The reversal of 23118479999 is 99997481132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23118479999 - 2⁴ = 23118479983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23118479929) 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, 4305644 + ... + 4311009.

It is an arithmetic number, because the mean of its divisors is an integer number (5781774834).

Almost surely, 2^23118479999 is an apocalyptic number.

23118479999 is a deficient number, since it is larger than the sum of its proper divisors (8619337).

23118479999 is an equidigital number, since it uses as much as digits as its factorization.

23118479999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8619336.

The product of its digits is 8817984, while the sum is 62.

The spelling of 23118479999 in words is "twenty-three billion, one hundred eighteen million, four hundred seventy-nine thousand, nine hundred ninety-nine".