10321 has 2 divisors, whose sum is σ = 10322.
Its totient is φ = 10320.
The previous prime is 10313. The next prime is 10331. The reversal of 10321 is 12301.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9025 + 1296 = 95^2 + 36^2
It is an emirp because it is prime and its reverse (12301) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10321 - 23 = 10313 is a prime.
It is an alternating number because its digits alternate between odd and even.
10321 is a lucky number.
It is not a weakly prime, because it can be changed into another prime (10301) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5160 + 5161.
It is an arithmetic number, because the mean of its divisors is an integer number (5161).
210321 is an apocalyptic number.
It is an amenable number.
10321 is a deficient number, since it is larger than the sum of its proper divisors (1).
10321 is an equidigital number, since it uses as much as digits as its factorization.
10321 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6, while the sum is 7.
The square root of 10321 is about 101.5923225446.
The cubic root of 10321 is about 21.7724478681.
Adding to 10321 its reverse (12301), we get a palindrome (22622).
The spelling of 10321 in words is "ten thousand, three hundred twenty-one", and thus it is an iban number.