243545034344231 has 4 divisors (see below), whose sum is σ = 243547315198272. Its totient is φ = 243542753490192.

The previous prime is 243545034344201. The next prime is 243545034344233. The reversal of 243545034344231 is 132443430545342.

243545034344231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243545034344231 is a prime.

It is a super-3 number, since 3×243545034344231³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243545034344233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140266846 + ... + 1140480411.

It is an arithmetic number, because the mean of its divisors is an integer number (60886828799568).

Almost surely, 2^{243545034344231} is an apocalyptic number.

243545034344231 is a deficient number, since it is larger than the sum of its proper divisors (2280854041).

243545034344231 is a wasteful number, since it uses less digits than its factorization.

243545034344231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280854040.

The product of its (nonzero) digits is 8294400, while the sum is 47.

Adding to 243545034344231 its reverse (132443430545342), we get a palindrome (375988464889573).

The spelling of 243545034344231 in words is "two hundred forty-three trillion, five hundred forty-five billion, thirty-four million, three hundred forty-four thousand, two hundred thirty-one".