111323120 has 40 divisors (see below), whose sum is σ = 260888064. Its totient is φ = 44174592.

The previous prime is 111323099. The next prime is 111323129. The reversal of 111323120 is 21323111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 111323095 and 111323104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111323129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4682 + ... + 15638.

Almost surely, 2^111323120 is an apocalyptic number.

111323120 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 111323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130444032).

111323120 is an abundant number, since it is smaller than the sum of its proper divisors (149564944).

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

111323120 is a wasteful number, since it uses less digits than its factorization.

111323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11097 (or 11091 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 111323120 is about 10550.9772059274. The cubic root of 111323120 is about 481.0554322262.

Adding to 111323120 its reverse (21323111), we get a palindrome (132646231).

Subtracting from 111323120 its reverse (21323111), we obtain a palindrome (90000009).

The spelling of 111323120 in words is "one hundred eleven million, three hundred twenty-three thousand, one hundred twenty".