243443412143 has 4 divisors (see below), whose sum is σ = 249104886888. Its totient is φ = 237781937400.

The previous prime is 243443412137. The next prime is 243443412169. The reversal of 243443412143 is 341214344342.

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 243443412143 - 2¹⁰ = 243443411119 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 (243443412103) 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, 2830737308 + ... + 2830737393.

It is an arithmetic number, because the mean of its divisors is an integer number (62276221722).

Almost surely, 2^243443412143 is an apocalyptic number.

243443412143 is a deficient number, since it is larger than the sum of its proper divisors (5661474745).

243443412143 is an equidigital number, since it uses as much as digits as its factorization.

243443412143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661474744.

The product of its digits is 110592, while the sum is 35.

Adding to 243443412143 its reverse (341214344342), we get a palindrome (584657756485).

The spelling of 243443412143 in words is "two hundred forty-three billion, four hundred forty-three million, four hundred twelve thousand, one hundred forty-three".