3321043021 has 4 divisors (see below), whose sum is σ = 3326083200. Its totient is φ = 3316002844.

The previous prime is 3321043013. The next prime is 3321043031. The reversal of 3321043021 is 1203401233.

3321043021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3321043021 - 2³ = 3321043013 is a prime.

It is a super-2 number, since 2×3321043021² = 22058653494665612882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3321043021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321043031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2519101 + ... + 2520418.

It is an arithmetic number, because the mean of its divisors is an integer number (831520800).

Almost surely, 2^3321043021 is an apocalyptic number.

It is an amenable number.

3321043021 is a deficient number, since it is larger than the sum of its proper divisors (5040179).

3321043021 is an equidigital number, since it uses as much as digits as its factorization.

3321043021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040178.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3321043021 is about 57628.4913996540. The cubic root of 3321043021 is about 1491.9633923376.

Adding to 3321043021 its reverse (1203401233), we get a palindrome (4524444254).

The spelling of 3321043021 in words is "three billion, three hundred twenty-one million, forty-three thousand, twenty-one".