10204321 has 2 divisors, whose sum is σ = 10204322. Its totient is φ = 10204320.

The previous prime is 10204319. The next prime is 10204339. The reversal of 10204321 is 12340201.

10204321 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6964321 + 3240000 = 2639^2 + 1800^2 .

It is a cyclic number.

It is not a de Polignac number, because 10204321 - 2¹ = 10204319 is a prime.

Together with 10204319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10204391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102160 + 5102161.

It is an arithmetic number, because the mean of its divisors is an integer number (5102161).

Almost surely, 2^10204321 is an apocalyptic number.

It is an amenable number.

10204321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10204321 is an equidigital number, since it uses as much as digits as its factorization.

10204321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10204321 is about 3194.4202916961. The cubic root of 10204321 is about 216.9009082708.

Adding to 10204321 its reverse (12340201), we get a palindrome (22544522).

The spelling of 10204321 in words is "ten million, two hundred four thousand, three hundred twenty-one".