30332213 has 2 divisors, whose sum is σ = 30332214. Its totient is φ = 30332212.

The previous prime is 30332209. The next prime is 30332221. The reversal of 30332213 is 31223303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27636049 + 2696164 = 5257^2 + 1642^2 .

It is an emirp because it is prime and its reverse (31223303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30332213 - 2² = 30332209 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30332191 and 30332200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30332293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15166106 + 15166107.

It is an arithmetic number, because the mean of its divisors is an integer number (15166107).

Almost surely, 2^30332213 is an apocalyptic number.

It is an amenable number.

30332213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30332213 is an equidigital number, since it uses as much as digits as its factorization.

30332213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 30332213 is about 5507.4688378601. The cubic root of 30332213 is about 311.8660016574.

Adding to 30332213 its reverse (31223303), we get a palindrome (61555516).

The spelling of 30332213 in words is "thirty million, three hundred thirty-two thousand, two hundred thirteen".