243305134042401 has 12 divisors (see below), whose sum is σ = 351441063394512. Its totient is φ = 162203277669336.

The previous prime is 243305134042391. The next prime is 243305134042403. The reversal of 243305134042401 is 104240431503342.

243305134042401 is a `hidden beast` number, since 2 + 4 + 3 + 3 + 0 + 5 + 1 + 3 + 404 + 240 + 1 = 666.

It is not a de Polignac number, because 243305134042401 - 2⁶ = 243305134042337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243305134042403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 917011 + ... + 22078296.

It is an arithmetic number, because the mean of its divisors is an integer number (29286755282876).

Almost surely, 2^{243305134042401} is an apocalyptic number.

It is an amenable number.

243305134042401 is a deficient number, since it is larger than the sum of its proper divisors (108135929352111).

243305134042401 is a wasteful number, since it uses less digits than its factorization.

243305134042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24170940 (or 24170937 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 243305134042401 its reverse (104240431503342), we get a palindrome (347545565545743).

The spelling of 243305134042401 in words is "two hundred forty-three trillion, three hundred five billion, one hundred thirty-four million, forty-two thousand, four hundred one".