243232214009 has 2 divisors, whose sum is σ = 243232214010. Its totient is φ = 243232214008.

The previous prime is 243232213979. The next prime is 243232214081. The reversal of 243232214009 is 900412232342.

243232214009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192721000000 + 50511214009 = 439000^2 + 224747^2 .

It is a cyclic number.

It is not a de Polignac number, because 243232214009 - 2⁸ = 243232213753 is a prime.

It is not a weakly prime, because it can be changed into another prime (243232214209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121616107004 + 121616107005.

It is an arithmetic number, because the mean of its divisors is an integer number (121616107005).

Almost surely, 2^243232214009 is an apocalyptic number.

It is an amenable number.

243232214009 is a deficient number, since it is larger than the sum of its proper divisors (1).

243232214009 is an equidigital number, since it uses as much as digits as its factorization.

243232214009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 243232214009 in words is "two hundred forty-three billion, two hundred thirty-two million, two hundred fourteen thousand, nine".