23183401091 has 4 divisors (see below), whose sum is σ = 23676664992. Its totient is φ = 22690137192.

The previous prime is 23183401063. The next prime is 23183401099. The reversal of 23183401091 is 19010438132.

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 23183401091 - 2⁶ = 23183401027 is a prime.

It is a super-2 number, since 2×23183401091² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23183401099) 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, 246631880 + ... + 246631973.

It is an arithmetic number, because the mean of its divisors is an integer number (5919166248).

Almost surely, 2^23183401091 is an apocalyptic number.

23183401091 is a deficient number, since it is larger than the sum of its proper divisors (493263901).

23183401091 is an equidigital number, since it uses as much as digits as its factorization.

23183401091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493263900.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 23183401091 in words is "twenty-three billion, one hundred eighty-three million, four hundred one thousand, ninety-one".