2143340213 has 12 divisors (see below), whose sum is σ = 2500238880. Its totient is φ = 1832016312.

The previous prime is 2143340191. The next prime is 2143340257. The reversal of 2143340213 is 3120433412.

It is not a de Polignac number, because 2143340213 - 2¹⁴ = 2143323829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143342213) 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, 43331 + ... + 78512.

It is an arithmetic number, because the mean of its divisors is an integer number (208353240).

Almost surely, 2^2143340213 is an apocalyptic number.

It is an amenable number.

2143340213 is a deficient number, since it is larger than the sum of its proper divisors (356898667).

2143340213 is a wasteful number, since it uses less digits than its factorization.

2143340213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122216 (or 122209 counting only the distinct ones).

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

The square root of 2143340213 is about 46296.2224484893. Note that the first 3 decimals coincide. The cubic root of 2143340213 is about 1289.3288604741.

Adding to 2143340213 its reverse (3120433412), we get a palindrome (5263773625).

The spelling of 2143340213 in words is "two billion, one hundred forty-three million, three hundred forty thousand, two hundred thirteen".