30020213 has 2 divisors, whose sum is σ = 30020214. Its totient is φ = 30020212.

The previous prime is 30020189. The next prime is 30020227. The reversal of 30020213 is 31202003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27952369 + 2067844 = 5287^2 + 1438^2 .

It is a cyclic number.

It is not a de Polignac number, because 30020213 - 2¹⁶ = 29954677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30020194 and 30020203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30020273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010106 + 15010107.

It is an arithmetic number, because the mean of its divisors is an integer number (15010107).

Almost surely, 2^30020213 is an apocalyptic number.

It is an amenable number.

30020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020213 is an equidigital number, since it uses as much as digits as its factorization.

30020213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30020213 is about 5479.0704503593. The cubic root of 30020213 is about 310.7930199179.

Adding to 30020213 its reverse (31202003), we get a palindrome (61222216).

The spelling of 30020213 in words is "thirty million, twenty thousand, two hundred thirteen".