111324139 has 2 divisors, whose sum is σ = 111324140. Its totient is φ = 111324138.

The previous prime is 111324133. The next prime is 111324149. The reversal of 111324139 is 931423111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111324139 - 2⁵ = 111324107 is a prime.

It is not a weakly prime, because it can be changed into another prime (111324133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55662069 + 55662070.

It is an arithmetic number, because the mean of its divisors is an integer number (55662070).

Almost surely, 2^111324139 is an apocalyptic number.

111324139 is a deficient number, since it is larger than the sum of its proper divisors (1).

111324139 is an equidigital number, since it uses as much as digits as its factorization.

111324139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 111324139 is about 10551.0254951829. The cubic root of 111324139 is about 481.0569000076.

It can be divided in two parts, 1113 and 24139, that added together give a palindrome (25252).

The spelling of 111324139 in words is "one hundred eleven million, three hundred twenty-four thousand, one hundred thirty-nine".