111223210023 has 8 divisors (see below), whose sum is σ = 164775126000. Its totient is φ = 74148806664.

The previous prime is 111223210009. The next prime is 111223210051. The reversal of 111223210023 is 320012322111.

It is not a de Polignac number, because 111223210023 - 2¹⁷ = 111223078951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111223209978 and 111223210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223210003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059689048 + ... + 2059689101.

It is an arithmetic number, because the mean of its divisors is an integer number (20596890750).

Almost surely, 2^111223210023 is an apocalyptic number.

111223210023 is a deficient number, since it is larger than the sum of its proper divisors (53551915977).

111223210023 is an equidigital number, since it uses as much as digits as its factorization.

111223210023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119378158 (or 4119378152 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111223210023 its reverse (320012322111), we get a palindrome (431235532134).

The spelling of 111223210023 in words is "one hundred eleven billion, two hundred twenty-three million, two hundred ten thousand, twenty-three".