3243121403 has 8 divisors (see below), whose sum is σ = 3292534272. Its totient is φ = 3194081856.

The previous prime is 3243121391. The next prime is 3243121411. The reversal of 3243121403 is 3041213423.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3243121403 - 2¹² = 3243117307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3243121423) 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 7 ways as a sum of consecutive naturals, for example, 75800 + ... + 110597.

It is an arithmetic number, because the mean of its divisors is an integer number (411566784).

Almost surely, 2^3243121403 is an apocalyptic number.

3243121403 is a deficient number, since it is larger than the sum of its proper divisors (49412869).

3243121403 is a wasteful number, since it uses less digits than its factorization.

3243121403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186661.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3243121403 is about 56948.4100129231. The cubic root of 3243121403 is about 1480.2022798453.

Adding to 3243121403 its reverse (3041213423), we get a palindrome (6284334826).

The spelling of 3243121403 in words is "three billion, two hundred forty-three million, one hundred twenty-one thousand, four hundred three".