111042 has 24 divisors (see below), whose sum is σ = 249600. Its totient is φ = 35640.

The previous prime is 111031. The next prime is 111043. The reversal of 111042 is 240111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459 + ... + 657.

It is an arithmetic number, because the mean of its divisors is an integer number (10400).

2¹¹¹⁰⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124800).

111042 is an abundant number, since it is smaller than the sum of its proper divisors (138558).

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

111042 is a wasteful number, since it uses less digits than its factorization.

111042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 111042 is about 333.2296505415. The cubic root of 111042 is about 48.0650160626.

Adding to 111042 its reverse (240111), we get a palindrome (351153).

The spelling of 111042 in words is "one hundred eleven thousand, forty-two", and thus it is an iban number.