111442023 has 36 divisors (see below), whose sum is σ = 204284808. Its totient is φ = 57889440.

The previous prime is 111442007. The next prime is 111442031. The reversal of 111442023 is 320244111.

It is not a de Polignac number, because 111442023 - 2⁴ = 111442007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111441987 and 111442005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111442003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6636 + ... + 16337.

It is an arithmetic number, because the mean of its divisors is an integer number (5674578).

Almost surely, 2^111442023 is an apocalyptic number.

111442023 is a deficient number, since it is larger than the sum of its proper divisors (92842785).

111442023 is a wasteful number, since it uses less digits than its factorization.

111442023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23004 (or 22994 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 111442023 is about 10556.6103934928. The cubic root of 111442023 is about 481.2266412905.

Adding to 111442023 its reverse (320244111), we get a palindrome (431686134).

The spelling of 111442023 in words is "one hundred eleven million, four hundred forty-two thousand, twenty-three".