111220133023 has 4 divisors (see below), whose sum is σ = 113586518880. Its totient is φ = 108853747168.

The previous prime is 111220132999. The next prime is 111220133027. The reversal of 111220133023 is 320331022111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320331022111 = 167 ⋅1918149833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111220133023 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 (111220133027) 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, 1183192858 + ... + 1183192951.

It is an arithmetic number, because the mean of its divisors is an integer number (28396629720).

Almost surely, 2^111220133023 is an apocalyptic number.

111220133023 is a deficient number, since it is larger than the sum of its proper divisors (2366385857).

111220133023 is an equidigital number, since it uses as much as digits as its factorization.

111220133023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366385856.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111220133023 its reverse (320331022111), we get a palindrome (431551155134).

The spelling of 111220133023 in words is "one hundred eleven billion, two hundred twenty million, one hundred thirty-three thousand, twenty-three".