243403034443 has 16 divisors (see below), whose sum is σ = 246200984640. Its totient is φ = 240623884800.

The previous prime is 243403034429. The next prime is 243403034447. The reversal of 243403034443 is 344430304342.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243403034443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243403034399 and 243403034408.

It is not an unprimeable number, because it can be changed into a prime (243403034447) 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 15 ways as a sum of consecutive naturals, for example, 27778183 + ... + 27786943.

It is an arithmetic number, because the mean of its divisors is an integer number (15387561540).

Almost surely, 2^243403034443 is an apocalyptic number.

243403034443 is a deficient number, since it is larger than the sum of its proper divisors (2797950197).

243403034443 is a wasteful number, since it uses less digits than its factorization.

243403034443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9798.

The product of its (nonzero) digits is 165888, while the sum is 34.

Adding to 243403034443 its reverse (344430304342), we get a palindrome (587833338785).

The spelling of 243403034443 in words is "two hundred forty-three billion, four hundred three million, thirty-four thousand, four hundred forty-three".