3243332021 has 4 divisors (see below), whose sum is σ = 3265099500. Its totient is φ = 3221564544.

The previous prime is 3243332017. The next prime is 3243332069. The reversal of 3243332021 is 1202333423.

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 205779025 + 3037552996 = 14345^2 + 55114^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243332021 - 2² = 3243332017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243332321) 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, 10883516 + ... + 10883813.

It is an arithmetic number, because the mean of its divisors is an integer number (816274875).

Almost surely, 2^3243332021 is an apocalyptic number.

It is an amenable number.

3243332021 is a deficient number, since it is larger than the sum of its proper divisors (21767479).

3243332021 is a wasteful number, since it uses less digits than its factorization.

3243332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767478.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 3243332021 is about 56950.2591829045. The cubic root of 3243332021 is about 1480.2343220722.

Adding to 3243332021 its reverse (1202333423), we get a palindrome (4445665444).

The spelling of 3243332021 in words is "three billion, two hundred forty-three million, three hundred thirty-two thousand, twenty-one".