243123340304 has 80 divisors (see below), whose sum is σ = 509428519488. Its totient is φ = 111737826816.

The previous prime is 243123340289. The next prime is 243123340331. The reversal of 243123340304 is 403043321342.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68348894 + ... + 68352450.

Almost surely, 2^243123340304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243123340304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254714259744).

243123340304 is an abundant number, since it is smaller than the sum of its proper divisors (266305179184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243123340304 is a wasteful number, since it uses less digits than its factorization.

243123340304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872 (or 4866 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 243123340304 its reverse (403043321342), we get a palindrome (646166661646).

The spelling of 243123340304 in words is "two hundred forty-three billion, one hundred twenty-three million, three hundred forty thousand, three hundred four".