111321120 has 48 divisors (see below), whose sum is σ = 350663040. Its totient is φ = 29685504.

The previous prime is 111321107. The next prime is 111321121. The reversal of 111321120 is 21123111.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111321096 and 111321105.

It is not an unprimeable number, because it can be changed into a prime (111321121) 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, 115480 + ... + 116439.

It is an arithmetic number, because the mean of its divisors is an integer number (7305480).

Almost surely, 2^111321120 is an apocalyptic number.

111321120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111321120 is an abundant number, since it is smaller than the sum of its proper divisors (239341920).

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

111321120 is a wasteful number, since it uses less digits than its factorization.

111321120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231937 (or 231929 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 111321120 is about 10550.8824275508. The cubic root of 111321120 is about 481.0525513732.

Adding to 111321120 its reverse (21123111), we get a palindrome (132444231).

The spelling of 111321120 in words is "one hundred eleven million, three hundred twenty-one thousand, one hundred twenty".