111330320 has 20 divisors (see below), whose sum is σ = 258843180. Its totient is φ = 44532096.

The previous prime is 111330301. The next prime is 111330341. The reversal of 111330320 is 23033111.

It can be written as a sum of positive squares in 2 ways, for example, as 17007376 + 94322944 = 4124^2 + 9712^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 111330295 and 111330304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695735 + ... + 695894.

It is an arithmetic number, because the mean of its divisors is an integer number (12942159).

Almost surely, 2^111330320 is an apocalyptic number.

111330320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111330320 is an abundant number, since it is smaller than the sum of its proper divisors (147512860).

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

111330320 is a wasteful number, since it uses less digits than its factorization.

111330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391642 (or 1391636 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 111330320 is about 10551.3184010341. The cubic root of 111330320 is about 481.0658030113.

Adding to 111330320 its reverse (23033111), we get a palindrome (134363431).

It can be divided in two parts, 11 and 1330320, that added together give a palindrome (1330331).

The spelling of 111330320 in words is "one hundred eleven million, three hundred thirty thousand, three hundred twenty".