111102442 has 24 divisors (see below), whose sum is σ = 185108868. Its totient is φ = 49969920.

The previous prime is 111102437. The next prime is 111102449. The reversal of 111102442 is 244201111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 106688241 + 4414201 = 10329^2 + 2101^2 .

It is not an unprimeable number, because it can be changed into a prime (111102449) 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, 21108 + ... + 25840.

Almost surely, 2^111102442 is an apocalyptic number.

111102442 is a deficient number, since it is larger than the sum of its proper divisors (74006426).

111102442 is a wasteful number, since it uses less digits than its factorization.

111102442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4854 (or 4843 counting only the distinct ones).

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

The square root of 111102442 is about 10540.5143138274. The cubic root of 111102442 is about 480.7373534222.

Adding to 111102442 its reverse (244201111), we get a palindrome (355303553).

The spelling of 111102442 in words is "one hundred eleven million, one hundred two thousand, four hundred forty-two".