243113412401 has 4 divisors (see below), whose sum is σ = 247700457972. Its totient is φ = 238526366832.

The previous prime is 243113412323. The next prime is 243113412403. The reversal of 243113412401 is 104214311342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 202882680625 + 40230731776 = 450425^2 + 200576^2 .

It is a cyclic number.

It is not a de Polignac number, because 243113412401 - 2¹⁸ = 243113150257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243113412403) 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 3 ways as a sum of consecutive naturals, for example, 2293522706 + ... + 2293522811.

It is an arithmetic number, because the mean of its divisors is an integer number (61925114493).

Almost surely, 2^243113412401 is an apocalyptic number.

It is an amenable number.

243113412401 is a deficient number, since it is larger than the sum of its proper divisors (4587045571).

243113412401 is an equidigital number, since it uses as much as digits as its factorization.

243113412401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4587045570.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 243113412401 its reverse (104214311342), we get a palindrome (347327723743).

The spelling of 243113412401 in words is "two hundred forty-three billion, one hundred thirteen million, four hundred twelve thousand, four hundred one".