243304432011 has 12 divisors (see below), whose sum is σ = 356685105192. Its totient is φ = 159782014656.

The previous prime is 243304432009. The next prime is 243304432027. The reversal of 243304432011 is 110234403342.

243304432011 is a `hidden beast` number, since 2 + 4 + 330 + 4 + 4 + 320 + 1 + 1 = 666.

It is not a de Polignac number, because 243304432011 - 2¹ = 243304432009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243304432031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201744366 + ... + 201745571.

It is an arithmetic number, because the mean of its divisors is an integer number (29723758766).

Almost surely, 2^243304432011 is an apocalyptic number.

243304432011 is a deficient number, since it is larger than the sum of its proper divisors (113380673181).

243304432011 is a wasteful number, since it uses less digits than its factorization.

243304432011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403490010 (or 403490007 counting only the distinct ones).

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

Adding to 243304432011 its reverse (110234403342), we get a palindrome (353538835353).

The spelling of 243304432011 in words is "two hundred forty-three billion, three hundred four million, four hundred thirty-two thousand, eleven".