111130344 has 72 divisors (see below), whose sum is σ = 325946790. Its totient is φ = 34190208.

The previous prime is 111130321. The next prime is 111130363. The reversal of 111130344 is 443031111.

It can be written as a sum of positive squares in 3 ways, for example, as 73307844 + 37822500 = 8562^2 + 6150^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 7602 + ... + 16734.

Almost surely, 2^111130344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111130344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162973395).

111130344 is an abundant number, since it is smaller than the sum of its proper divisors (214816446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111130344 is a wasteful number, since it uses less digits than its factorization.

111130344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9171 (or 9151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 111130344 is about 10541.8377904424. The cubic root of 111130344 is about 480.7775937945. Note that the first 3 decimals are identical.

Adding to 111130344 its reverse (443031111), we get a palindrome (554161455).

The spelling of 111130344 in words is "one hundred eleven million, one hundred thirty thousand, three hundred forty-four".