111530132 has 48 divisors (see below), whose sum is σ = 241718400. Its totient is φ = 43932672.

The previous prime is 111530117. The next prime is 111530141. The reversal of 111530132 is 231035111.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 111530132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17744 + ... + 23192.

It is an arithmetic number, because the mean of its divisors is an integer number (5035800).

Almost surely, 2^111530132 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 111530132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120859200).

111530132 is an abundant number, since it is smaller than the sum of its proper divisors (130188268).

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

111530132 is a wasteful number, since it uses less digits than its factorization.

111530132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520 (or 5518 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 111530132 is about 10560.7827361422. The cubic root of 111530132 is about 481.3534313696.

Adding to 111530132 its reverse (231035111), we get a palindrome (342565243).

The spelling of 111530132 in words is "one hundred eleven million, five hundred thirty thousand, one hundred thirty-two".