243343042011 has 12 divisors (see below), whose sum is σ = 351499852392. Its totient is φ = 162226688256.

The previous prime is 243343041989. The next prime is 243343042069. The reversal of 243343042011 is 110240343342.

243343042011 is a `hidden beast` number, since 2 + 4 + 334 + 304 + 20 + 1 + 1 = 666.

It is not a de Polignac number, because 243343042011 - 2⁶ = 243343041947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243343042091) 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 in 11 ways as a sum of consecutive naturals, for example, 1133320 + ... + 1330826.

It is an arithmetic number, because the mean of its divisors is an integer number (29291654366).

Almost surely, 2^243343042011 is an apocalyptic number.

243343042011 is a deficient number, since it is larger than the sum of its proper divisors (108156810381).

243343042011 is a wasteful number, since it uses less digits than its factorization.

243343042011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334410 (or 334407 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 243343042011 its reverse (110240343342), we get a palindrome (353583385353).

The spelling of 243343042011 in words is "two hundred forty-three billion, three hundred forty-three million, forty-two thousand, eleven".