111142042 has 8 divisors (see below), whose sum is σ = 181868832. Its totient is φ = 50519100.

The previous prime is 111142033. The next prime is 111142067. The reversal of 111142042 is 240241111.

It is a happy number.

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

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, 2525934 + ... + 2525977.

It is an arithmetic number, because the mean of its divisors is an integer number (22733604).

Almost surely, 2^111142042 is an apocalyptic number.

111142042 is a deficient number, since it is larger than the sum of its proper divisors (70726790).

111142042 is a wasteful number, since it uses less digits than its factorization.

111142042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051924.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 111142042 is about 10542.3926126852. The cubic root of 111142042 is about 480.7944626915.

Adding to 111142042 its reverse (240241111), we get a palindrome (351383153).

The spelling of 111142042 in words is "one hundred eleven million, one hundred forty-two thousand, forty-two".