104108321 has 2 divisors, whose sum is σ = 104108322. Its totient is φ = 104108320.

The previous prime is 104108299. The next prime is 104108339. The reversal of 104108321 is 123801401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76807696 + 27300625 = 8764^2 + 5225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104108321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104108293 and 104108302.

It is not a weakly prime, because it can be changed into another prime (104108351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52054160 + 52054161.

It is an arithmetic number, because the mean of its divisors is an integer number (52054161).

Almost surely, 2^104108321 is an apocalyptic number.

It is an amenable number.

104108321 is a deficient number, since it is larger than the sum of its proper divisors (1).

104108321 is an equidigital number, since it uses as much as digits as its factorization.

104108321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 104108321 is about 10203.3485189912. The cubic root of 104108321 is about 470.4301494344.

Adding to 104108321 its reverse (123801401), we get a palindrome (227909722).

The spelling of 104108321 in words is "one hundred four million, one hundred eight thousand, three hundred twenty-one".