243442331405212 has 12 divisors (see below), whose sum is σ = 428254572525696. Its totient is φ = 121083882112160.

The previous prime is 243442331405153. The next prime is 243442331405243. The reversal of 243442331405212 is 212504133244342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159320896753 + ... + 159320898280.

It is an arithmetic number, because the mean of its divisors is an integer number (35687881043808).

Almost surely, 2^{243442331405212} is an apocalyptic number.

It is an amenable number.

243442331405212 is a deficient number, since it is larger than the sum of its proper divisors (184812241120484).

243442331405212 is a wasteful number, since it uses less digits than its factorization.

243442331405212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318641795228 (or 318641795226 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 40.

Adding to 243442331405212 its reverse (212504133244342), we get a palindrome (455946464649554).

The spelling of 243442331405212 in words is "two hundred forty-three trillion, four hundred forty-two billion, three hundred thirty-one million, four hundred five thousand, two hundred twelve".