111553312 has 96 divisors (see below), whose sum is σ = 251475840. Its totient is φ = 48322560.

The previous prime is 111553307. The next prime is 111553319. The reversal of 111553312 is 213355111.

It is not an unprimeable number, because it can be changed into a prime (111553319) 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, 851487 + ... + 851617.

It is an arithmetic number, because the mean of its divisors is an integer number (2619540).

Almost surely, 2^111553312 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 111553312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125737920).

111553312 is an abundant number, since it is smaller than the sum of its proper divisors (139922528).

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

111553312 is a wasteful number, since it uses less digits than its factorization.

111553312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 258 counting only the distinct ones).

The product of its digits is 450, while the sum is 22.

The square root of 111553312 is about 10561.8801356577. The cubic root of 111553312 is about 481.3867766173.

The spelling of 111553312 in words is "one hundred eleven million, five hundred fifty-three thousand, three hundred twelve".