10109321 has 2 divisors, whose sum is σ = 10109322. Its totient is φ = 10109320.

The previous prime is 10109303. The next prime is 10109369. The reversal of 10109321 is 12390101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9369721 + 739600 = 3061^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 10109321 - 2¹⁰ = 10108297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10109321.

It is not a weakly prime, because it can be changed into another prime (10109521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5054660 + 5054661.

It is an arithmetic number, because the mean of its divisors is an integer number (5054661).

Almost surely, 2^10109321 is an apocalyptic number.

It is an amenable number.

10109321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10109321 is an equidigital number, since it uses as much as digits as its factorization.

10109321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 10109321 is about 3179.5158436466. The cubic root of 10109321 is about 216.2257085659.

Adding to 10109321 its reverse (12390101), we get a palindrome (22499422).

The spelling of 10109321 in words is "ten million, one hundred nine thousand, three hundred twenty-one".