243404230312 has 16 divisors (see below), whose sum is σ = 459289831860. Its totient is φ = 120926941824.

The previous prime is 243404230247. The next prime is 243404230327. The reversal of 243404230312 is 213032404342.

It can be written as a sum of positive squares in 2 ways, for example, as 240615756676 + 2788473636 = 490526^2 + 52806^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96895333 + ... + 96897844.

Almost surely, 2^243404230312 is an apocalyptic number.

It is an amenable number.

243404230312 is a deficient number, since it is larger than the sum of its proper divisors (215885601548).

243404230312 is a wasteful number, since it uses less digits than its factorization.

243404230312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193793340 (or 193793336 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 243404230312 its reverse (213032404342), we get a palindrome (456436634654).

The spelling of 243404230312 in words is "two hundred forty-three billion, four hundred four million, two hundred thirty thousand, three hundred twelve".