111004442 has 4 divisors (see below), whose sum is σ = 166506666. Its totient is φ = 55502220.

The previous prime is 111004433. The next prime is 111004447. The reversal of 111004442 is 244400111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244400111 = 5741 ⋅42571.

It can be written as a sum of positive squares in only one way, i.e., 85914361 + 25090081 = 9269^2 + 5009^2 .

It is a super-2 number, since 2×111004442² = 24643972287462728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111004442.

It is not an unprimeable number, because it can be changed into a prime (111004447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27751109 + ... + 27751112.

Almost surely, 2^111004442 is an apocalyptic number.

111004442 is a deficient number, since it is larger than the sum of its proper divisors (55502224).

111004442 is an equidigital number, since it uses as much as digits as its factorization.

111004442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55502223.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 111004442 is about 10535.8645587346. The cubic root of 111004442 is about 480.5959640322.

Adding to 111004442 its reverse (244400111), we get a palindrome (355404553).

The spelling of 111004442 in words is "one hundred eleven million, four thousand, four hundred forty-two".