3020302021 has 4 divisors (see below), whose sum is σ = 3294874944. Its totient is φ = 2745729100.

The previous prime is 3020302013. The next prime is 3020302027. The reversal of 3020302021 is 1202030203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3020302021 - 2³ = 3020302013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020301992 and 3020302010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020302027) 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 in 3 ways as a sum of consecutive naturals, for example, 137286445 + ... + 137286466.

It is an arithmetic number, because the mean of its divisors is an integer number (823718736).

Almost surely, 2^3020302021 is an apocalyptic number.

It is an amenable number.

3020302021 is a deficient number, since it is larger than the sum of its proper divisors (274572923).

3020302021 is a wasteful number, since it uses less digits than its factorization.

3020302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274572922.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3020302021 is about 54957.2745048369. The cubic root of 3020302021 is about 1445.4956567210.

Adding to 3020302021 its reverse (1202030203), we get a palindrome (4222332224).

It can be divided in two parts, 302030202 and 1, that added together give a palindrome (302030203).

The spelling of 3020302021 in words is "three billion, twenty million, three hundred two thousand, twenty-one".