243111305241 has 36 divisors (see below), whose sum is σ = 408542726592. Its totient is φ = 138903884784.

The previous prime is 243111305201. The next prime is 243111305243. The reversal of 243111305241 is 142503111342.

243111305241 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 1 + 130 + 524 + 1 = 666.

It is not a de Polignac number, because 243111305241 - 2⁷ = 243111305113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243111305243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4215100 + ... + 4272386.

It is an arithmetic number, because the mean of its divisors is an integer number (11348409072).

Almost surely, 2^243111305241 is an apocalyptic number.

243111305241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243111305241 is a deficient number, since it is larger than the sum of its proper divisors (165431421351).

243111305241 is a wasteful number, since it uses less digits than its factorization.

243111305241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66930 (or 66920 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 243111305241 its reverse (142503111342), we get a palindrome (385614416583).

The spelling of 243111305241 in words is "two hundred forty-three billion, one hundred eleven million, three hundred five thousand, two hundred forty-one".