111120442 has 4 divisors (see below), whose sum is σ = 166680666. Its totient is φ = 55560220.

The previous prime is 111120439. The next prime is 111120481. The reversal of 111120442 is 244021111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 95824521 + 15295921 = 9789^2 + 3911^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27780109 + ... + 27780112.

Almost surely, 2^111120442 is an apocalyptic number.

111120442 is a deficient number, since it is larger than the sum of its proper divisors (55560224).

111120442 is an equidigital number, since it uses as much as digits as its factorization.

111120442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55560223.

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

The square root of 111120442 is about 10541.3681275250. The cubic root of 111120442 is about 480.7633138629.

Adding to 111120442 its reverse (244021111), we get a palindrome (355141553).

The spelling of 111120442 in words is "one hundred eleven million, one hundred twenty thousand, four hundred forty-two".