243423021304 has 16 divisors (see below), whose sum is σ = 456448635720. Its totient is φ = 121703385120.

The previous prime is 243423021299. The next prime is 243423021307. The reversal of 243423021304 is 403120324342.

243423021304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243423021307) 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 in 3 ways as a sum of consecutive naturals, for example, 887419 + ... + 1128874.

Almost surely, 2^243423021304 is an apocalyptic number.

It is an amenable number.

243423021304 is a deficient number, since it is larger than the sum of its proper divisors (213025614416).

243423021304 is a wasteful number, since it uses less digits than its factorization.

243423021304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031390 (or 2031386 counting only the distinct ones).

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

Adding to 243423021304 its reverse (403120324342), we get a palindrome (646543345646).

The spelling of 243423021304 in words is "two hundred forty-three billion, four hundred twenty-three million, twenty-one thousand, three hundred four".