3030452021 has 2 divisors, whose sum is σ = 3030452022. Its totient is φ = 3030452020.

The previous prime is 3030452017. The next prime is 3030452023. The reversal of 3030452021 is 1202540303.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3007315921 + 23136100 = 54839^2 + 4810^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030452021 - 2² = 3030452017 is a prime.

It is a Sophie Germain prime.

Together with 3030452023, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3030451984 and 3030452002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3030452023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515226010 + 1515226011.

It is an arithmetic number, because the mean of its divisors is an integer number (1515226011).

Almost surely, 2^3030452021 is an apocalyptic number.

It is an amenable number.

3030452021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3030452021 is an equidigital number, since it uses as much as digits as its factorization.

3030452021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3030452021 is about 55049.5415148937. The cubic root of 3030452021 is about 1447.1130861640.

Adding to 3030452021 its reverse (1202540303), we get a palindrome (4232992324).

The spelling of 3030452021 in words is "three billion, thirty million, four hundred fifty-two thousand, twenty-one".