243042131011 has 2 divisors, whose sum is σ = 243042131012. Its totient is φ = 243042131010.

The previous prime is 243042130937. The next prime is 243042131063. The reversal of 243042131011 is 110131240342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243042131011 - 2¹⁹ = 243041606723 is a prime.

It is not a weakly prime, because it can be changed into another prime (243042131081) 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 as a sum of consecutive naturals, namely, 121521065505 + 121521065506.

It is an arithmetic number, because the mean of its divisors is an integer number (121521065506).

Almost surely, 2^243042131011 is an apocalyptic number.

243042131011 is a deficient number, since it is larger than the sum of its proper divisors (1).

243042131011 is an equidigital number, since it uses as much as digits as its factorization.

243042131011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 243042131011 its reverse (110131240342), we get a palindrome (353173371353).

The spelling of 243042131011 in words is "two hundred forty-three billion, forty-two million, one hundred thirty-one thousand, eleven".