111099042 has 48 divisors (see below), whose sum is σ = 254273760. Its totient is φ = 34960896.

The previous prime is 111099011. The next prime is 111099059. The reversal of 111099042 is 240990111.

It is a junction number, because it is equal to n+sod(n) for n = 111098997 and 111099015.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192258 + ... + 192834.

It is an arithmetic number, because the mean of its divisors is an integer number (5297370).

Almost surely, 2^111099042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111099042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127136880).

111099042 is an abundant number, since it is smaller than the sum of its proper divisors (143174718).

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

111099042 is a wasteful number, since it uses less digits than its factorization.

111099042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 111099042 is about 10540.3530301409. The cubic root of 111099042 is about 480.7324494685.

The spelling of 111099042 in words is "one hundred eleven million, ninety-nine thousand, forty-two".