243204222143 has 2 divisors, whose sum is σ = 243204222144. Its totient is φ = 243204222142.

The previous prime is 243204222113. The next prime is 243204222197. The reversal of 243204222143 is 341222402342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243204222143 - 2¹⁰ = 243204221119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243204222113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121602111071 + 121602111072.

It is an arithmetic number, because the mean of its divisors is an integer number (121602111072).

Almost surely, 2^243204222143 is an apocalyptic number.

243204222143 is a deficient number, since it is larger than the sum of its proper divisors (1).

243204222143 is an equidigital number, since it uses as much as digits as its factorization.

243204222143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243204222143 its reverse (341222402342), we get a palindrome (584426624485).

The spelling of 243204222143 in words is "two hundred forty-three billion, two hundred four million, two hundred twenty-two thousand, one hundred forty-three".