243423321304 has 8 divisors (see below), whose sum is σ = 456418727460. Its totient is φ = 121711660648.

The previous prime is 243423321301. The next prime is 243423321319. The reversal of 243423321304 is 403123324342.

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 (243423321301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15213957574 + ... + 15213957589.

Almost surely, 2^243423321304 is an apocalyptic number.

It is an amenable number.

243423321304 is a deficient number, since it is larger than the sum of its proper divisors (212995406156).

243423321304 is a wasteful number, since it uses less digits than its factorization.

243423321304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30427915169 (or 30427915165 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 243423321304 its reverse (403123324342), we get a palindrome (646546645646).

The spelling of 243423321304 in words is "two hundred forty-three billion, four hundred twenty-three million, three hundred twenty-one thousand, three hundred four".