243110420221 has 8 divisors (see below), whose sum is σ = 244073152800. Its totient is φ = 242148125040.

The previous prime is 243110420153. The next prime is 243110420237. The reversal of 243110420221 is 122024011342.

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 243110420221 - 2⁷ = 243110420093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243110420192 and 243110420201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243110420261) 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, 1027806 + ... + 1242016.

It is an arithmetic number, because the mean of its divisors is an integer number (30509144100).

Almost surely, 2^243110420221 is an apocalyptic number.

It is an amenable number.

243110420221 is a deficient number, since it is larger than the sum of its proper divisors (962732579).

243110420221 is a wasteful number, since it uses less digits than its factorization.

243110420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218699.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 243110420221 its reverse (122024011342), we get a palindrome (365134431563).

The spelling of 243110420221 in words is "two hundred forty-three billion, one hundred ten million, four hundred twenty thousand, two hundred twenty-one".