243054104221 has 8 divisors (see below), whose sum is σ = 246399090560. Its totient is φ = 239709536352.

The previous prime is 243054104219. The next prime is 243054104239. The reversal of 243054104221 is 122401450342.

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

It is a cyclic number.

It is not a de Polignac number, because 243054104221 - 2¹ = 243054104219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243054104221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243054104281) 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, 1171306 + ... + 1363108.

It is an arithmetic number, because the mean of its divisors is an integer number (30799886320).

Almost surely, 2^243054104221 is an apocalyptic number.

It is an amenable number.

243054104221 is a deficient number, since it is larger than the sum of its proper divisors (3344986339).

243054104221 is a wasteful number, since it uses less digits than its factorization.

243054104221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209235.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 243054104221 its reverse (122401450342), we get a palindrome (365455554563).

The spelling of 243054104221 in words is "two hundred forty-three billion, fifty-four million, one hundred four thousand, two hundred twenty-one".