104321 has 6 divisors (see below), whose sum is σ = 121410. Its totient is φ = 89376.

The previous prime is 104311. The next prime is 104323. The reversal of 104321 is 123401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78400 + 25921 = 280^2 + 161^2 .

It is a de Polignac number, because none of the positive numbers 2^k-104321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1016 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (20235).

2¹⁰⁴³²¹ is an apocalyptic number.

It is an amenable number.

104321 is a deficient number, since it is larger than the sum of its proper divisors (17089).

104321 is an equidigital number, since it uses as much as digits as its factorization.

104321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 104321 is about 322.9876158617. The cubic root of 104321 is about 47.0750272937.

Adding to 104321 its reverse (123401), we get a palindrome (227722).

The spelling of 104321 in words is "one hundred four thousand, three hundred twenty-one", and thus it is an iban number.