111802042 has 16 divisors (see below), whose sum is σ = 192578400. Its totient is φ = 48144240.

The previous prime is 111802003. The next prime is 111802043. The reversal of 111802042 is 240208111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (111802043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133317 + ... + 134152.

It is an arithmetic number, because the mean of its divisors is an integer number (12036150).

Almost surely, 2^111802042 is an apocalyptic number.

111802042 is a deficient number, since it is larger than the sum of its proper divisors (80776358).

111802042 is a wasteful number, since it uses less digits than its factorization.

111802042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267501.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 111802042 is about 10573.6484715542. The cubic root of 111802042 is about 481.7442931259.

The spelling of 111802042 in words is "one hundred eleven million, eight hundred two thousand, forty-two".