30422321 has 2 divisors, whose sum is σ = 30422322. Its totient is φ = 30422320.

The previous prime is 30422297. The next prime is 30422323. The reversal of 30422321 is 12322403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 9991921 = 4520^2 + 3161^2 .

It is a cyclic number.

It is not a de Polignac number, because 30422321 - 2⁶ = 30422257 is a prime.

Together with 30422323, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30422321.

It is not a weakly prime, because it can be changed into another prime (30422323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15211160 + 15211161.

It is an arithmetic number, because the mean of its divisors is an integer number (15211161).

Almost surely, 2^30422321 is an apocalyptic number.

It is an amenable number.

30422321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30422321 is an equidigital number, since it uses as much as digits as its factorization.

30422321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30422321 is about 5515.6432988365. The cubic root of 30422321 is about 312.1745167919.

Adding to 30422321 its reverse (12322403), we get a palindrome (42744724).

The spelling of 30422321 in words is "thirty million, four hundred twenty-two thousand, three hundred twenty-one".