243143433443 has 4 divisors (see below), whose sum is σ = 243192747528. Its totient is φ = 243094119360.

The previous prime is 243143433433. The next prime is 243143433451. The reversal of 243143433443 is 344334341342.

It is a happy number.

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 243143433443 - 2¹⁰ = 243143432419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243143433397 and 243143433406.

It is not an unprimeable number, because it can be changed into a prime (243143433433) 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, 24649646 + ... + 24659507.

It is an arithmetic number, because the mean of its divisors is an integer number (60798186882).

Almost surely, 2^243143433443 is an apocalyptic number.

243143433443 is a deficient number, since it is larger than the sum of its proper divisors (49314085).

243143433443 is an equidigital number, since it uses as much as digits as its factorization.

243143433443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49314084.

The product of its digits is 497664, while the sum is 38.

Adding to 243143433443 its reverse (344334341342), we get a palindrome (587477774785).

The spelling of 243143433443 in words is "two hundred forty-three billion, one hundred forty-three million, four hundred thirty-three thousand, four hundred forty-three".