243343140443 has 96 divisors (see below), whose sum is σ = 301368883200. Its totient is φ = 194781210624.

The previous prime is 243343140419. The next prime is 243343140449. The reversal of 243343140443 is 344041343342.

It is not a de Polignac number, because 243343140443 - 2¹⁰ = 243343139419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243343140449) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 293537753 + ... + 293538581.

It is an arithmetic number, because the mean of its divisors is an integer number (3139259200).

Almost surely, 2^243343140443 is an apocalyptic number.

243343140443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

243343140443 is a deficient number, since it is larger than the sum of its proper divisors (58025742757).

243343140443 is a wasteful number, since it uses less digits than its factorization.

243343140443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 243343140443 its reverse (344041343342), we get a palindrome (587384483785).

The spelling of 243343140443 in words is "two hundred forty-three billion, three hundred forty-three million, one hundred forty thousand, four hundred forty-three".