243332340221 has 8 divisors (see below), whose sum is σ = 244715995200. Its totient is φ = 241950294432.

The previous prime is 243332340197. The next prime is 243332340281. The reversal of 243332340221 is 122043233342.

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-243332340221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243332340281) 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, 98360 + ... + 704513.

It is an arithmetic number, because the mean of its divisors is an integer number (30589499400).

Almost surely, 2^243332340221 is an apocalyptic number.

It is an amenable number.

243332340221 is a deficient number, since it is larger than the sum of its proper divisors (1383654979).

243332340221 is a wasteful number, since it uses less digits than its factorization.

243332340221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804595.

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

Adding to 243332340221 its reverse (122043233342), we get a palindrome (365375573563).

The spelling of 243332340221 in words is "two hundred forty-three billion, three hundred thirty-two million, three hundred forty thousand, two hundred twenty-one".