11109545023 has 4 divisors (see below), whose sum is σ = 11122979400. Its totient is φ = 11096110648.

The previous prime is 11109545017. The next prime is 11109545071. The reversal of 11109545023 is 32054590111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11109545023 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 (11109545003) 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, 6715948 + ... + 6717601.

It is an arithmetic number, because the mean of its divisors is an integer number (2780744850).

Almost surely, 2^11109545023 is an apocalyptic number.

11109545023 is a deficient number, since it is larger than the sum of its proper divisors (13434377).

11109545023 is an equidigital number, since it uses as much as digits as its factorization.

11109545023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13434376.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 11109545023 in words is "eleven billion, one hundred nine million, five hundred forty-five thousand, twenty-three".