108321 has 4 divisors (see below), whose sum is σ = 144432. Its totient is φ = 72212.

The previous prime is 108301. The next prime is 108343. The reversal of 108321 is 123801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108321 - 2⁵ = 108289 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 108321.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 108321.

It is not an unprimeable number, because it can be changed into a prime (108301) 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, 18051 + ... + 18056.

It is an arithmetic number, because the mean of its divisors is an integer number (36108).

2¹⁰⁸³²¹ is an apocalyptic number.

It is an amenable number.

108321 is a deficient number, since it is larger than the sum of its proper divisors (36111).

108321 is an equidigital number, since it uses as much as digits as its factorization.

108321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36110.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 108321 is about 329.1215580906. The cubic root of 108321 is about 47.6691659787.

The spelling of 108321 in words is "one hundred eight thousand, three hundred twenty-one".