243113235201 has 12 divisors (see below), whose sum is σ = 351174060900. Its totient is φ = 162070644480.

The previous prime is 243113235173. The next prime is 243113235247. The reversal of 243113235201 is 102532311342.

243113235201 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 132 + 3 + 520 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 44554766400 + 198558468801 = 211080^2 + 445599^2 .

It is not a de Polignac number, because 243113235201 - 2⁷ = 243113235073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243113635201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71676 + ... + 700973.

It is an arithmetic number, because the mean of its divisors is an integer number (29264505075).

Almost surely, 2^243113235201 is an apocalyptic number.

It is an amenable number.

243113235201 is a deficient number, since it is larger than the sum of its proper divisors (108060825699).

243113235201 is a wasteful number, since it uses less digits than its factorization.

243113235201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807616 (or 807613 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 243113235201 its reverse (102532311342), we get a palindrome (345645546543).

The spelling of 243113235201 in words is "two hundred forty-three billion, one hundred thirteen million, two hundred thirty-five thousand, two hundred one".