111130442 has 8 divisors (see below), whose sum is σ = 167289732. Its totient is φ = 55367200.

The previous prime is 111130433. The next prime is 111130463. The reversal of 111130442 is 244031111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 109390681 + 1739761 = 10459^2 + 1319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111130442.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 98309 + ... + 99432.

Almost surely, 2^111130442 is an apocalyptic number.

111130442 is a deficient number, since it is larger than the sum of its proper divisors (56159290).

111130442 is a wasteful number, since it uses less digits than its factorization.

111130442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198024.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 111130442 is about 10541.8424385873. The cubic root of 111130442 is about 480.7777351187. Note that the first 4 decimals are identical.

Adding to 111130442 its reverse (244031111), we get a palindrome (355161553).

The spelling of 111130442 in words is "one hundred eleven million, one hundred thirty thousand, four hundred forty-two".