111424039 has 2 divisors, whose sum is σ = 111424040. Its totient is φ = 111424038.

The previous prime is 111424031. The next prime is 111424067. The reversal of 111424039 is 930424111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111424039 - 2³ = 111424031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111424031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55712019 + 55712020.

It is an arithmetic number, because the mean of its divisors is an integer number (55712020).

Almost surely, 2^111424039 is an apocalyptic number.

111424039 is a deficient number, since it is larger than the sum of its proper divisors (1).

111424039 is an equidigital number, since it uses as much as digits as its factorization.

111424039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 111424039 is about 10555.7585705623. The cubic root of 111424039 is about 481.2007538522.

The spelling of 111424039 in words is "one hundred eleven million, four hundred twenty-four thousand, thirty-nine".