3243203421 has 4 divisors (see below), whose sum is σ = 4324271232. Its totient is φ = 2162135612.

The previous prime is 3243203419. The next prime is 3243203473. The reversal of 3243203421 is 1243023423.

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 3243203421 - 2¹ = 3243203419 is a prime.

It is a super-2 number, since 2×3243203421² = 21036736859972206482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3243203391 and 3243203400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243203221) 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, 540533901 + ... + 540533906.

It is an arithmetic number, because the mean of its divisors is an integer number (1081067808).

Almost surely, 2^3243203421 is an apocalyptic number.

It is an amenable number.

3243203421 is a deficient number, since it is larger than the sum of its proper divisors (1081067811).

3243203421 is a wasteful number, since it uses less digits than its factorization.

3243203421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081067810.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3243203421 is about 56949.1301162713. The cubic root of 3243203421 is about 1480.2147577632.

Adding to 3243203421 its reverse (1243023423), we get a palindrome (4486226844).

The spelling of 3243203421 in words is "three billion, two hundred forty-three million, two hundred three thousand, four hundred twenty-one".