3243143121 has 4 divisors (see below), whose sum is σ = 4324190832. Its totient is φ = 2162095412.

The previous prime is 3243143081. The next prime is 3243143147. The reversal of 3243143121 is 1213413423.

It is a happy number.

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 3243143121 - 2¹³ = 3243134929 is a prime.

It is a super-3 number, since 3×3243143121³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3243143091 and 3243143100.

It is not an unprimeable number, because it can be changed into a prime (3243143161) 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, 540523851 + ... + 540523856.

It is an arithmetic number, because the mean of its divisors is an integer number (1081047708).

Almost surely, 2^3243143121 is an apocalyptic number.

It is an amenable number.

3243143121 is a deficient number, since it is larger than the sum of its proper divisors (1081047711).

3243143121 is a wasteful number, since it uses less digits than its factorization.

3243143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081047710.

The product of its digits is 1728, while the sum is 24.

The square root of 3243143121 is about 56948.6006939591. The cubic root of 3243143121 is about 1480.2055839627.

Adding to 3243143121 its reverse (1213413423), we get a palindrome (4456556544).

The spelling of 3243143121 in words is "three billion, two hundred forty-three million, one hundred forty-three thousand, one hundred twenty-one".