243045210041 has 4 divisors (see below), whose sum is σ = 248697424272. Its totient is φ = 237392995812.

The previous prime is 243045209993. The next prime is 243045210043. The reversal of 243045210041 is 140012540342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243045210041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243045210043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2826107051 + ... + 2826107136.

It is an arithmetic number, because the mean of its divisors is an integer number (62174356068).

Almost surely, 2^243045210041 is an apocalyptic number.

It is an amenable number.

243045210041 is a deficient number, since it is larger than the sum of its proper divisors (5652214231).

243045210041 is an equidigital number, since it uses as much as digits as its factorization.

243045210041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652214230.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 243045210041 its reverse (140012540342), we get a palindrome (383057750383).

The spelling of 243045210041 in words is "two hundred forty-three billion, forty-five million, two hundred ten thousand, forty-one".