243331342312 has 8 divisors (see below), whose sum is σ = 456246266850. Its totient is φ = 121665671152.

The previous prime is 243331342291. The next prime is 243331342313. The reversal of 243331342312 is 213243133342.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 228115132996 + 15216209316 = 477614^2 + 123354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (243331342313) 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 as a sum of consecutive naturals, namely, 15208208887 + ... + 15208208902.

Almost surely, 2^243331342312 is an apocalyptic number.

It is an amenable number.

243331342312 is a deficient number, since it is larger than the sum of its proper divisors (212914924538).

243331342312 is a wasteful number, since it uses less digits than its factorization.

243331342312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30416417795 (or 30416417791 counting only the distinct ones).

The product of its digits is 31104, while the sum is 31.

Adding to 243331342312 its reverse (213243133342), we get a palindrome (456574475654).

The spelling of 243331342312 in words is "two hundred forty-three billion, three hundred thirty-one million, three hundred forty-two thousand, three hundred twelve".