3030010021 has 2 divisors, whose sum is σ = 3030010022. Its totient is φ = 3030010020.

The previous prime is 3030010001. The next prime is 3030010033. The reversal of 3030010021 is 1200100303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2233980225 + 796029796 = 47265^2 + 28214^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030010021 - 2⁵ = 3030009989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3030010001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515005010 + 1515005011.

It is an arithmetic number, because the mean of its divisors is an integer number (1515005011).

Almost surely, 2^3030010021 is an apocalyptic number.

It is an amenable number.

3030010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3030010021 is an equidigital number, since it uses as much as digits as its factorization.

3030010021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 3030010021 is about 55045.5268028202. The cubic root of 3030010021 is about 1447.0427275641.

Adding to 3030010021 its reverse (1200100303), we get a palindrome (4230110324).

The spelling of 3030010021 in words is "three billion, thirty million, ten thousand, twenty-one".