3020042021 has 2 divisors, whose sum is σ = 3020042022. Its totient is φ = 3020042020.

The previous prime is 3020041939. The next prime is 3020042029. The reversal of 3020042021 is 1202400203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2056622500 + 963419521 = 45350^2 + 31039^2 .

It is an emirp because it is prime and its reverse (1202400203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3020042021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3020041987 and 3020042005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020042029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510021010 + 1510021011.

It is an arithmetic number, because the mean of its divisors is an integer number (1510021011).

Almost surely, 2^3020042021 is an apocalyptic number.

It is an amenable number.

3020042021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020042021 is an equidigital number, since it uses as much as digits as its factorization.

3020042021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 3020042021 is about 54954.9089799992. The cubic root of 3020042021 is about 1445.4541774635.

Adding to 3020042021 its reverse (1202400203), we get a palindrome (4222442224).

The spelling of 3020042021 in words is "three billion, twenty million, forty-two thousand, twenty-one".