111123103023 has 18 divisors (see below), whose sum is σ = 170508386984. Its totient is φ = 69724298304.

The previous prime is 111123103009. The next prime is 111123103051. The reversal of 111123103023 is 320301321111.

It is not a de Polignac number, because 111123103023 - 2¹⁴ = 111123086639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111123102987 and 111123103005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111123104023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21359011 + ... + 21364212.

Almost surely, 2^111123103023 is an apocalyptic number.

111123103023 is a deficient number, since it is larger than the sum of its proper divisors (59385283961).

111123103023 is a wasteful number, since it uses less digits than its factorization.

111123103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42723263 (or 42723243 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111123103023 its reverse (320301321111), we get a palindrome (431424424134).

The spelling of 111123103023 in words is "one hundred eleven billion, one hundred twenty-three million, one hundred three thousand, twenty-three".