11320111223 has 4 divisors (see below), whose sum is σ = 11322810048. Its totient is φ = 11317412400.

The previous prime is 11320111217. The next prime is 11320111259. The reversal of 11320111223 is 32211102311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32211102311 = 139 ⋅231734549.

It is a cyclic number.

It is not a de Polignac number, because 11320111223 - 2²⁶ = 11253002359 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 (11320111823) 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, 1343111 + ... + 1351512.

It is an arithmetic number, because the mean of its divisors is an integer number (2830702512).

Almost surely, 2^11320111223 is an apocalyptic number.

11320111223 is a deficient number, since it is larger than the sum of its proper divisors (2698825).

11320111223 is an equidigital number, since it uses as much as digits as its factorization.

11320111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698824.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11320111223 its reverse (32211102311), we get a palindrome (43531213534).

The spelling of 11320111223 in words is "eleven billion, three hundred twenty million, one hundred eleven thousand, two hundred twenty-three".