111683321 has 4 divisors (see below), whose sum is σ = 115534500. Its totient is φ = 107832144.

The previous prime is 111683317. The next prime is 111683323. The reversal of 111683321 is 123386111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20748025 + 90935296 = 4555^2 + 9536^2 .

It is a cyclic number.

It is not a de Polignac number, because 111683321 - 2² = 111683317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111683323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1925546 + ... + 1925603.

It is an arithmetic number, because the mean of its divisors is an integer number (28883625).

Almost surely, 2^111683321 is an apocalyptic number.

It is an amenable number.

111683321 is a deficient number, since it is larger than the sum of its proper divisors (3851179).

111683321 is an equidigital number, since it uses as much as digits as its factorization.

111683321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851178.

The product of its digits is 864, while the sum is 26.

The square root of 111683321 is about 10568.0329768600. The cubic root of 111683321 is about 481.5737135928.

The spelling of 111683321 in words is "one hundred eleven million, six hundred eighty-three thousand, three hundred twenty-one".