11591058923 has 4 divisors (see below), whose sum is σ = 11990750640. Its totient is φ = 11191367208.

The previous prime is 11591058883. The next prime is 11591058961. The reversal of 11591058923 is 32985019511.

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 11591058923 - 2⁸ = 11591058667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11591358923) 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, 199845815 + ... + 199845872.

It is an arithmetic number, because the mean of its divisors is an integer number (2997687660).

Almost surely, 2^11591058923 is an apocalyptic number.

11591058923 is a deficient number, since it is larger than the sum of its proper divisors (399691717).

11591058923 is an equidigital number, since it uses as much as digits as its factorization.

11591058923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399691716.

The product of its (nonzero) digits is 97200, while the sum is 44.

The spelling of 11591058923 in words is "eleven billion, five hundred ninety-one million, fifty-eight thousand, nine hundred twenty-three".