3020330021 has 2 divisors, whose sum is σ = 3020330022. Its totient is φ = 3020330020.

The previous prime is 3020330009. The next prime is 3020330023. The reversal of 3020330021 is 1200330203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2595393025 + 424936996 = 50945^2 + 20614^2 .

It is a cyclic number.

It is not a de Polignac number, because 3020330021 - 2³⁰ = 1946588197 is a prime.

Together with 3020330023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3020329978 and 3020330005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020330023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510165010 + 1510165011.

It is an arithmetic number, because the mean of its divisors is an integer number (1510165011).

Almost surely, 2^3020330021 is an apocalyptic number.

It is an amenable number.

3020330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020330021 is an equidigital number, since it uses as much as digits as its factorization.

3020330021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 3020330021 is about 54957.5292475926. The cubic root of 3020330021 is about 1445.5001235760.

Adding to 3020330021 its reverse (1200330203), we get a palindrome (4220660224).

The spelling of 3020330021 in words is "three billion, twenty million, three hundred thirty thousand, twenty-one".