3020204321 has 2 divisors, whose sum is σ = 3020204322. Its totient is φ = 3020204320.

The previous prime is 3020204281. The next prime is 3020204351. The reversal of 3020204321 is 1234020203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2534619025 + 485585296 = 50345^2 + 22036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3020204321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3020204321.

It is not a weakly prime, because it can be changed into another prime (3020204351) 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, 1510102160 + 1510102161.

It is an arithmetic number, because the mean of its divisors is an integer number (1510102161).

Almost surely, 2^3020204321 is an apocalyptic number.

It is an amenable number.

3020204321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020204321 is an equidigital number, since it uses as much as digits as its factorization.

3020204321 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 3020204321 is about 54956.3856253302. The cubic root of 3020204321 is about 1445.4800703715.

Adding to 3020204321 its reverse (1234020203), we get a palindrome (4254224524).

The spelling of 3020204321 in words is "three billion, twenty million, two hundred four thousand, three hundred twenty-one".