111442430 has 32 divisors (see below), whose sum is σ = 219276288. Its totient is φ = 40442400.

The previous prime is 111442417. The next prime is 111442459. The reversal of 111442430 is 34244111.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89915 + ... + 91145.

It is an arithmetic number, because the mean of its divisors is an integer number (6852384).

Almost surely, 2^111442430 is an apocalyptic number.

111442430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111442430 is a deficient number, since it is larger than the sum of its proper divisors (107833858).

111442430 is a wasteful number, since it uses less digits than its factorization.

111442430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 111442430 is about 10556.6296704962. The cubic root of 111442430 is about 481.2272271228.

Adding to 111442430 its reverse (34244111), we get a palindrome (145686541).

It can be divided in two parts, 11 and 1442430, that added together give a palindrome (1442441).

The spelling of 111442430 in words is "one hundred eleven million, four hundred forty-two thousand, four hundred thirty".