2143243303 has 4 divisors (see below), whose sum is σ = 2148081768. Its totient is φ = 2138404840.

The previous prime is 2143243259. The next prime is 2143243313. The reversal of 2143243303 is 3033423412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2143243303 - 2²¹ = 2141146151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143243313) 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, 2418568 + ... + 2419453.

It is an arithmetic number, because the mean of its divisors is an integer number (537020442).

Almost surely, 2^2143243303 is an apocalyptic number.

2143243303 is a deficient number, since it is larger than the sum of its proper divisors (4838465).

2143243303 is an equidigital number, since it uses as much as digits as its factorization.

2143243303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838464.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 2143243303 is about 46295.1758069888. The cubic root of 2143243303 is about 1289.3094280726.

Adding to 2143243303 its reverse (3033423412), we get a palindrome (5176666715).

The spelling of 2143243303 in words is "two billion, one hundred forty-three million, two hundred forty-three thousand, three hundred three".