111223311110123 has 4 divisors (see below), whose sum is σ = 111223395534768. Its totient is φ = 111223226685480.

The previous prime is 111223311110099. The next prime is 111223311110141. The reversal of 111223311110123 is 321011113322111.

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

It is a cyclic number.

It is not a de Polignac number, because 111223311110123 - 2²⁰ = 111223310061547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111223311110183) 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, 40204343 + ... + 42881648.

It is an arithmetic number, because the mean of its divisors is an integer number (27805848883692).

Almost surely, 2^{111223311110123} is an apocalyptic number.

111223311110123 is a deficient number, since it is larger than the sum of its proper divisors (84424645).

111223311110123 is an equidigital number, since it uses as much as digits as its factorization.

111223311110123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84424644.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 111223311110123 its reverse (321011113322111), we get a palindrome (432234424432234).

The spelling of 111223311110123 in words is "one hundred eleven trillion, two hundred twenty-three billion, three hundred eleven million, one hundred ten thousand, one hundred twenty-three".