243354212205 has 32 divisors (see below), whose sum is σ = 419729869440. Its totient is φ = 119687481600.

The previous prime is 243354212147. The next prime is 243354212239. The reversal of 243354212205 is 502212453342.

243354212205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243354212205 - 2⁶ = 243354212141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413646 + ... + 811055.

It is an arithmetic number, because the mean of its divisors is an integer number (13116558420).

Almost surely, 2^243354212205 is an apocalyptic number.

It is an amenable number.

243354212205 is a deficient number, since it is larger than the sum of its proper divisors (176375657235).

243354212205 is a wasteful number, since it uses less digits than its factorization.

243354212205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225741.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 243354212205 its reverse (502212453342), we get a palindrome (745566665547).

The spelling of 243354212205 in words is "two hundred forty-three billion, three hundred fifty-four million, two hundred twelve thousand, two hundred five".