243333223133 has 72 divisors (see below), whose sum is σ = 334294023168. Its totient is φ = 173281680000.

The previous prime is 243333223127. The next prime is 243333223169. The reversal of 243333223133 is 331322333342.

It is a de Polignac number, because none of the positive numbers 2^k-243333223133 is a prime.

It is a super-2 number, since 2×243333223133² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243333223133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243333223033) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14449028 + ... + 14465858.

It is an arithmetic number, because the mean of its divisors is an integer number (4642972544).

Almost surely, 2^243333223133 is an apocalyptic number.

It is an amenable number.

243333223133 is a deficient number, since it is larger than the sum of its proper divisors (90960800035).

243333223133 is a wasteful number, since it uses less digits than its factorization.

243333223133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16987 (or 16963 counting only the distinct ones).

The product of its digits is 69984, while the sum is 32.

Adding to 243333223133 its reverse (331322333342), we get a palindrome (574655556475).

The spelling of 243333223133 in words is "two hundred forty-three billion, three hundred thirty-three million, two hundred twenty-three thousand, one hundred thirty-three".