30310213 has 2 divisors, whose sum is σ = 30310214. Its totient is φ = 30310212.

The previous prime is 30310207. The next prime is 30310261. The reversal of 30310213 is 31201303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25786084 + 4524129 = 5078^2 + 2127^2 .

It is a cyclic number.

It is not a de Polignac number, because 30310213 - 2¹⁷ = 30179141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30310193 and 30310202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30316213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155106 + 15155107.

It is an arithmetic number, because the mean of its divisors is an integer number (15155107).

Almost surely, 2^30310213 is an apocalyptic number.

It is an amenable number.

30310213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30310213 is an equidigital number, since it uses as much as digits as its factorization.

30310213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 30310213 is about 5505.4711878276. The cubic root of 30310213 is about 311.7905844600.

Adding to 30310213 its reverse (31201303), we get a palindrome (61511516).

The spelling of 30310213 in words is "thirty million, three hundred ten thousand, two hundred thirteen".