243044020312 has 8 divisors (see below), whose sum is σ = 455707538100. Its totient is φ = 121522010152.

The previous prime is 243044020301. The next prime is 243044020319. The reversal of 243044020312 is 213020440342.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243044020319) by changing a digit.

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 as a sum of consecutive naturals, namely, 15190251262 + ... + 15190251277.

Almost surely, 2^243044020312 is an apocalyptic number.

It is an amenable number.

243044020312 is a deficient number, since it is larger than the sum of its proper divisors (212663517788).

243044020312 is a wasteful number, since it uses less digits than its factorization.

243044020312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30380502545 (or 30380502541 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 243044020312 its reverse (213020440342), we get a palindrome (456064460654).

The spelling of 243044020312 in words is "two hundred forty-three billion, forty-four million, twenty thousand, three hundred twelve".