3243133021 has 2 divisors, whose sum is σ = 3243133022. Its totient is φ = 3243133020.

The previous prime is 3243133013. The next prime is 3243133031. The reversal of 3243133021 is 1203313423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2960556921 + 282576100 = 54411^2 + 16810^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243133021 - 2³ = 3243133013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3243132983 and 3243133001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3243133001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621566510 + 1621566511.

It is an arithmetic number, because the mean of its divisors is an integer number (1621566511).

Almost surely, 2^3243133021 is an apocalyptic number.

It is an amenable number.

3243133021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3243133021 is an equidigital number, since it uses as much as digits as its factorization.

3243133021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3243133021 is about 56948.5120174355. The cubic root of 3243133021 is about 1480.2040473780.

Adding to 3243133021 its reverse (1203313423), we get a palindrome (4446446444).

The spelling of 3243133021 in words is "three billion, two hundred forty-three million, one hundred thirty-three thousand, twenty-one".