2143323243 has 12 divisors (see below), whose sum is σ = 3096381808. Its totient is φ = 1428665040.

The previous prime is 2143323227. The next prime is 2143323277. The reversal of 2143323243 is 3423233412.

2143323243 is a `hidden beast` number, since 2 + 1 + 4 + 332 + 324 + 3 = 666.

It is not a de Polignac number, because 2143323243 - 2⁴ = 2143323227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143323223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64053 + ... + 91593.

Almost surely, 2^2143323243 is an apocalyptic number.

2143323243 is a deficient number, since it is larger than the sum of its proper divisors (953058565).

2143323243 is a wasteful number, since it uses less digits than its factorization.

2143323243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36194 (or 36191 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 2143323243 is about 46296.0391718341. The cubic root of 2143323243 is about 1289.3254576906.

Adding to 2143323243 its reverse (3423233412), we get a palindrome (5566556655).

The spelling of 2143323243 in words is "two billion, one hundred forty-three million, three hundred twenty-three thousand, two hundred forty-three".