243204230399 has 8 divisors (see below), whose sum is σ = 261928294992. Its totient is φ = 224482458240.

The previous prime is 243204230387. The next prime is 243204230441. The reversal of 243204230399 is 993032402342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243204230399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243204230099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349529 + ... + 780114.

It is an arithmetic number, because the mean of its divisors is an integer number (32741036874).

Almost surely, 2^243204230399 is an apocalyptic number.

243204230399 is a deficient number, since it is larger than the sum of its proper divisors (18724064593).

243204230399 is a wasteful number, since it uses less digits than its factorization.

243204230399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146217.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 243204230399 in words is "two hundred forty-three billion, two hundred four million, two hundred thirty thousand, three hundred ninety-nine".