243324343 has 4 divisors (see below), whose sum is σ = 243401400. Its totient is φ = 243247288.

The previous prime is 243324331. The next prime is 243324373. The reversal of 243324343 is 343423342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343423342 = 2 ⋅171711671.

It is a cyclic number.

It is not a de Polignac number, because 243324343 - 2¹⁷ = 243193271 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 (243324373) 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, 33580 + ... + 40177.

It is an arithmetic number, because the mean of its divisors is an integer number (60850350).

Almost surely, 2^243324343 is an apocalyptic number.

243324343 is a deficient number, since it is larger than the sum of its proper divisors (77057).

243324343 is an equidigital number, since it uses as much as digits as its factorization.

243324343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77056.

The product of its digits is 20736, while the sum is 28.

The square root of 243324343 is about 15598.8571055703. The cubic root of 243324343 is about 624.3026616000.

Adding to 243324343 its reverse (343423342), we get a palindrome (586747685).

The spelling of 243324343 in words is "two hundred forty-three million, three hundred twenty-four thousand, three hundred forty-three".