11523234555 has 40 divisors (see below), whose sum is σ = 23607394272. Its totient is φ = 5267763072.

The previous prime is 11523234529. The next prime is 11523234581. The reversal of 11523234555 is 55543232511.

It is an interprime number because it is at equal distance from previous prime (11523234529) and next prime (11523234581).

It is not a de Polignac number, because 11523234555 - 2⁷ = 11523234427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2029482 + ... + 2035151.

Almost surely, 2^11523234555 is an apocalyptic number.

11523234555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11523234555 is an abundant number, since it is smaller than the sum of its proper divisors (12084159717).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11523234555 is an equidigital number, since it uses as much as digits as its factorization.

11523234555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064657 (or 4064648 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 11523234555 in words is "eleven billion, five hundred twenty-three million, two hundred thirty-four thousand, five hundred fifty-five".