111320115 has 24 divisors (see below), whose sum is σ = 186206160. Its totient is φ = 56785344.

The previous prime is 111320093. The next prime is 111320123. The reversal of 111320115 is 511023111.

It is not a de Polignac number, because 111320115 - 2⁶ = 111320051 is a prime.

It is a super-2 number, since 2×111320115² = 24784336007226450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 111320094 and 111320103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 921 + ... + 14949.

It is an arithmetic number, because the mean of its divisors is an integer number (7758590).

Almost surely, 2^111320115 is an apocalyptic number.

111320115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111320115 is a deficient number, since it is larger than the sum of its proper divisors (74886045).

111320115 is a wasteful number, since it uses less digits than its factorization.

111320115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14083 (or 14060 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 111320115 is about 10550.8348010951. The cubic root of 111320115 is about 481.0511037316.

Adding to 111320115 its reverse (511023111), we get a palindrome (622343226).

The spelling of 111320115 in words is "one hundred eleven million, three hundred twenty thousand, one hundred fifteen".