111320552 has 48 divisors (see below), whose sum is σ = 253380960. Its totient is φ = 45630816.

The previous prime is 111320543. The next prime is 111320569. The reversal of 111320552 is 255023111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2843 + ... + 15189.

It is an arithmetic number, because the mean of its divisors is an integer number (5278770).

Almost surely, 2^111320552 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 111320552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126690480).

111320552 is an abundant number, since it is smaller than the sum of its proper divisors (142060408).

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

111320552 is a wasteful number, since it uses less digits than its factorization.

111320552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390 (or 12379 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 111320552 is about 10550.8555103366. The cubic root of 111320552 is about 481.0517332047.

Adding to 111320552 its reverse (255023111), we get a palindrome (366343663).

The spelling of 111320552 in words is "one hundred eleven million, three hundred twenty thousand, five hundred fifty-two".