111530244 has 48 divisors (see below), whose sum is σ = 297980928. Its totient is φ = 31805088.

The previous prime is 111530239. The next prime is 111530249. The reversal of 111530244 is 442035111.

It is an interprime number because it is at equal distance from previous prime (111530239) and next prime (111530249).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 111530244.

It is not an unprimeable number, because it can be changed into a prime (111530249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61519 + ... + 63305.

It is an arithmetic number, because the mean of its divisors is an integer number (6207936).

Almost surely, 2^111530244 is an apocalyptic number.

111530244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111530244 is an abundant number, since it is smaller than the sum of its proper divisors (186450684).

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

111530244 is a wasteful number, since it uses less digits than its factorization.

111530244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 111530244 is about 10560.7880387782. The cubic root of 111530244 is about 481.3535924967.

Adding to 111530244 its reverse (442035111), we get a palindrome (553565355).

The spelling of 111530244 in words is "one hundred eleven million, five hundred thirty thousand, two hundred forty-four".