900323321 has 2 divisors, whose sum is σ = 900323322. Its totient is φ = 900323320.

The previous prime is 900323279. The next prime is 900323351. The reversal of 900323321 is 123323009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 869365225 + 30958096 = 29485^2 + 5564^2 .

It is an emirp because it is prime and its reverse (123323009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 900323321 - 2¹⁸ = 900061177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (900323351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450161660 + 450161661.

It is an arithmetic number, because the mean of its divisors is an integer number (450161661).

Almost surely, 2^900323321 is an apocalyptic number.

It is an amenable number.

900323321 is a deficient number, since it is larger than the sum of its proper divisors (1).

900323321 is an equidigital number, since it uses as much as digits as its factorization.

900323321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 900323321 is about 30005.3881994551. The cubic root of 900323321 is about 965.6049866870.

The spelling of 900323321 in words is "nine hundred million, three hundred twenty-three thousand, three hundred twenty-one".