111331120023 has 6 divisors (see below), whose sum is σ = 160811617824. Its totient is φ = 74220746676.

The previous prime is 111331120009. The next prime is 111331120039. The reversal of 111331120023 is 320021133111.

111331120023 is a `hidden beast` number, since 111 + 331 + 1 + 200 + 23 = 666.

It is not a de Polignac number, because 111331120023 - 2⁴ = 111331120007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111331119978 and 111331120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111331120223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6185062215 + ... + 6185062232.

It is an arithmetic number, because the mean of its divisors is an integer number (26801936304).

Almost surely, 2^111331120023 is an apocalyptic number.

111331120023 is a deficient number, since it is larger than the sum of its proper divisors (49480497801).

111331120023 is a wasteful number, since it uses less digits than its factorization.

111331120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370124453 (or 12370124450 counting only the distinct ones).

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

Adding to 111331120023 its reverse (320021133111), we get a palindrome (431352253134).

The spelling of 111331120023 in words is "one hundred eleven billion, three hundred thirty-one million, one hundred twenty thousand, twenty-three".