111423331 has 16 divisors (see below), whose sum is σ = 118920960. Its totient is φ = 104232960.

The previous prime is 111423251. The next prime is 111423343. The reversal of 111423331 is 133324111.

It is a cyclic number.

It is not a de Polignac number, because 111423331 - 2⁷ = 111423203 is a prime.

It is a super-2 number, since 2×111423331² = 24830317382271122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111423299 and 111423308.

It is not an unprimeable number, because it can be changed into a prime (117423331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119475 + ... + 120403.

It is an arithmetic number, because the mean of its divisors is an integer number (7432560).

Almost surely, 2^111423331 is an apocalyptic number.

111423331 is a deficient number, since it is larger than the sum of its proper divisors (7497629).

111423331 is an equidigital number, since it uses as much as digits as its factorization.

111423331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its digits is 216, while the sum is 19.

The square root of 111423331 is about 10555.7250343119. The cubic root of 111423331 is about 481.1997346500.

Adding to 111423331 its reverse (133324111), we get a palindrome (244747442).

The spelling of 111423331 in words is "one hundred eleven million, four hundred twenty-three thousand, three hundred thirty-one".