111530880 has 288 divisors, whose sum is σ = 415223640. Its totient is φ = 27574272.

The previous prime is 111530873. The next prime is 111530971. The reversal of 111530880 is 88035111.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1664607 + ... + 1664673.

Almost surely, 2^111530880 is an apocalyptic number.

111530880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111530880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207611820).

111530880 is an abundant number, since it is smaller than the sum of its proper divisors (303692760).

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

111530880 is a wasteful number, since it uses less digits than its factorization.

111530880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 111530880 is about 10560.8181501245. The cubic root of 111530880 is about 481.3545074662.

Adding to 111530880 its reverse (88035111), we get a palindrome (199565991).

The spelling of 111530880 in words is "one hundred eleven million, five hundred thirty thousand, eight hundred eighty".