10320209 has 2 divisors, whose sum is σ = 10320210. Its totient is φ = 10320208.

The previous prime is 10320203. The next prime is 10320223. The reversal of 10320209 is 90202301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6027025 + 4293184 = 2455^2 + 2072^2 .

It is a cyclic number.

It is not a de Polignac number, because 10320209 - 2¹² = 10316113 is a prime.

It is not a weakly prime, because it can be changed into another prime (10320203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5160104 + 5160105.

It is an arithmetic number, because the mean of its divisors is an integer number (5160105).

Almost surely, 2^10320209 is an apocalyptic number.

It is an amenable number.

10320209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10320209 is an equidigital number, since it uses as much as digits as its factorization.

10320209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 10320209 is about 3212.5082101062. The cubic root of 10320209 is about 217.7189164141.

The spelling of 10320209 in words is "ten million, three hundred twenty thousand, two hundred nine".