111440042 has 8 divisors (see below), whose sum is σ = 191040096. Its totient is φ = 47760012.

The previous prime is 111440039. The next prime is 111440057. The reversal of 111440042 is 240044111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111440042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3979988 + ... + 3980015.

It is an arithmetic number, because the mean of its divisors is an integer number (23880012).

Almost surely, 2^111440042 is an apocalyptic number.

111440042 is a deficient number, since it is larger than the sum of its proper divisors (79600054).

111440042 is an equidigital number, since it uses as much as digits as its factorization.

111440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960012.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 111440042 is about 10556.5165656101. The cubic root of 111440042 is about 481.2237898358.

Adding to 111440042 its reverse (240044111), we get a palindrome (351484153).

The spelling of 111440042 in words is "one hundred eleven million, four hundred forty thousand, forty-two".