243134422443 has 64 divisors (see below), whose sum is σ = 399078604800. Its totient is φ = 145064818080.

The previous prime is 243134422423. The next prime is 243134422457. The reversal of 243134422443 is 344224431342.

243134422443 is a `hidden beast` number, since 2 + 43 + 134 + 42 + 2 + 443 = 666.

It is not a de Polignac number, because 243134422443 - 2⁵ = 243134422411 is a prime.

It is a super-2 number, since 2×243134422443² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243134422398 and 243134422407.

It is not an unprimeable number, because it can be changed into a prime (243134422423) 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 63 ways as a sum of consecutive naturals, for example, 8126730 + ... + 8156592.

It is an arithmetic number, because the mean of its divisors is an integer number (6235603200).

Almost surely, 2^243134422443 is an apocalyptic number.

243134422443 is a deficient number, since it is larger than the sum of its proper divisors (155944182357).

243134422443 is a wasteful number, since it uses less digits than its factorization.

243134422443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30309 (or 30303 counting only the distinct ones).

The product of its digits is 221184, while the sum is 36.

Adding to 243134422443 its reverse (344224431342), we get a palindrome (587358853785).

The spelling of 243134422443 in words is "two hundred forty-three billion, one hundred thirty-four million, four hundred twenty-two thousand, four hundred forty-three".