3000030020021 has 32 divisors (see below), whose sum is σ = 3271221704448. Its totient is φ = 2743485465600.

The previous prime is 3000030019907. The next prime is 3000030020051. The reversal of 3000030020021 is 1200200300003.

It is a cyclic number.

It is not a de Polignac number, because 3000030020021 - 2¹⁴ = 3000030003637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3000030019984 and 3000030020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000030020051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22798211 + ... + 22929423.

It is an arithmetic number, because the mean of its divisors is an integer number (102225678264).

Almost surely, 2^{3000030020021} is an apocalyptic number.

It is an amenable number.

3000030020021 is a deficient number, since it is larger than the sum of its proper divisors (271191684427).

3000030020021 is a wasteful number, since it uses less digits than its factorization.

3000030020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131741.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 3000030020021 its reverse (1200200300003), we get a palindrome (4200230320024).

The spelling of 3000030020021 in words is "three trillion, thirty million, twenty thousand, twenty-one".