243444444343 has 4 divisors (see below), whose sum is σ = 243465447960. Its totient is φ = 243423440728.

The previous prime is 243444444317. The next prime is 243444444371. The reversal of 243444444343 is 343444444342.

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 243444444343 - 2²¹ = 243442347191 is a prime.

It is a super-3 number, since 3×243444444343³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243444444343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243444444743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10484413 + ... + 10507606.

It is an arithmetic number, because the mean of its divisors is an integer number (60866361990).

Almost surely, 2^243444444343 is an apocalyptic number.

243444444343 is a deficient number, since it is larger than the sum of its proper divisors (21003617).

243444444343 is a wasteful number, since it uses less digits than its factorization.

243444444343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21003616.

The product of its digits is 3538944, while the sum is 43.

Adding to 243444444343 its reverse (343444444342), we get a palindrome (586888888685).

Subtracting 243444444343 from its reverse (343444444342), we obtain a palindrome (99999999999).

The spelling of 243444444343 in words is "two hundred forty-three billion, four hundred forty-four million, four hundred forty-four thousand, three hundred forty-three".