111112123223 has 4 divisors (see below), whose sum is σ = 111125860728. Its totient is φ = 111098385720.

The previous prime is 111112123211. The next prime is 111112123229. The reversal of 111112123223 is 322321211111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322321211111 = 19 ⋅16964274269.

It is a cyclic number.

It is not a de Polignac number, because 111112123223 - 2⁴ = 111112123207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111112123195 and 111112123204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112123229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6856613 + ... + 6872798.

It is an arithmetic number, because the mean of its divisors is an integer number (27781465182).

Almost surely, 2^111112123223 is an apocalyptic number.

111112123223 is a deficient number, since it is larger than the sum of its proper divisors (13737505).

111112123223 is an equidigital number, since it uses as much as digits as its factorization.

111112123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13737504.

The product of its digits is 144, while the sum is 20.

Adding to 111112123223 its reverse (322321211111), we get a palindrome (433433334334).

The spelling of 111112123223 in words is "one hundred eleven billion, one hundred twelve million, one hundred twenty-three thousand, two hundred twenty-three".