111120112 has 40 divisors (see below), whose sum is σ = 225923040. Its totient is φ = 52872960.

The previous prime is 111120091. The next prime is 111120133. The reversal of 111120112 is 211021111.

It is an interprime number because it is at equal distance from previous prime (111120091) and next prime (111120133).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31258 + ... + 34630.

It is an arithmetic number, because the mean of its divisors is an integer number (5648076).

Almost surely, 2^111120112 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 111120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112961520).

111120112 is an abundant number, since it is smaller than the sum of its proper divisors (114802928).

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

111120112 is a wasteful number, since it uses less digits than its factorization.

111120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481 (or 3475 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 111120112 is about 10541.3524748962. The cubic root of 111120112 is about 480.7628379467.

Adding to 111120112 its reverse (211021111), we get a palindrome (322141223).

Subtracting 111120112 from its reverse (211021111), we obtain a palindrome (99900999).

The spelling of 111120112 in words is "one hundred eleven million, one hundred twenty thousand, one hundred twelve".