111108042 has 24 divisors (see below), whose sum is σ = 244127520. Its totient is φ = 36513960.

The previous prime is 111108037. The next prime is 111108071. The reversal of 111108042 is 240801111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42192 + ... + 44747.

It is an arithmetic number, because the mean of its divisors is an integer number (10171980).

Almost surely, 2^111108042 is an apocalyptic number.

111108042 is an abundant number, since it is smaller than the sum of its proper divisors (133019478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111108042 is a wasteful number, since it uses less digits than its factorization.

111108042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87018 (or 87015 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 111108042 is about 10540.7799521667. The cubic root of 111108042 is about 480.7454303042.

Adding to 111108042 its reverse (240801111), we get a palindrome (351909153).

The spelling of 111108042 in words is "one hundred eleven million, one hundred eight thousand, forty-two".