218333230011 has 24 divisors (see below), whose sum is σ = 347527836656. Its totient is φ = 131234281920.

The previous prime is 218333229997. The next prime is 218333230079. The reversal of 218333230011 is 110032333812.

218333230011 is a `hidden beast` number, since 2 + 18 + 3 + 332 + 300 + 11 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-218333230011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (218333230811) 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 23 ways as a sum of consecutive naturals, for example, 21693760 + ... + 21703821.

Almost surely, 2^218333230011 is an apocalyptic number.

218333230011 is a deficient number, since it is larger than the sum of its proper divisors (129194606645).

218333230011 is a wasteful number, since it uses less digits than its factorization.

218333230011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43397643 (or 43397640 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 218333230011 its reverse (110032333812), we get a palindrome (328365563823).

The spelling of 218333230011 in words is "two hundred eighteen billion, three hundred thirty-three million, two hundred thirty thousand, eleven".