3243101021 has 4 divisors (see below), whose sum is σ = 3243823200. Its totient is φ = 3242378844.

The previous prime is 3243100963. The next prime is 3243101027. The reversal of 3243101021 is 1201013423.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1201013423 = 1423 ⋅844001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3243101021 is a prime.

It is a super-2 number, since 2×3243101021² = 21035408464822484882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243101027) 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, 354311 + ... + 363348.

It is an arithmetic number, because the mean of its divisors is an integer number (810955800).

Almost surely, 2^3243101021 is an apocalyptic number.

It is an amenable number.

3243101021 is a deficient number, since it is larger than the sum of its proper divisors (722179).

3243101021 is an equidigital number, since it uses as much as digits as its factorization.

3243101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722178.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3243101021 is about 56948.2310612015. The cubic root of 3243101021 is about 1480.1991789699.

Adding to 3243101021 its reverse (1201013423), we get a palindrome (4444114444).

The spelling of 3243101021 in words is "three billion, two hundred forty-three million, one hundred one thousand, twenty-one".