3004021021 has 4 divisors (see below), whose sum is σ = 3004352092. Its totient is φ = 3003689952.

The previous prime is 3004021001. The next prime is 3004021037. The reversal of 3004021021 is 1201204003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2170255396 + 833765625 = 46586^2 + 28875^2 .

It is a cyclic number.

It is not a de Polignac number, because 3004021021 - 2¹¹ = 3004018973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3004020992 and 3004021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3004021001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151530 + ... + 170203.

It is an arithmetic number, because the mean of its divisors is an integer number (751088023).

Almost surely, 2^3004021021 is an apocalyptic number.

It is an amenable number.

3004021021 is a deficient number, since it is larger than the sum of its proper divisors (331071).

3004021021 is an equidigital number, since it uses as much as digits as its factorization.

3004021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331070.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3004021021 is about 54808.9501906395. The cubic root of 3004021021 is about 1442.8936510539.

Adding to 3004021021 its reverse (1201204003), we get a palindrome (4205225024).

The spelling of 3004021021 in words is "three billion, four million, twenty-one thousand, twenty-one".