11223136533 has 16 divisors (see below), whose sum is σ = 17465794560. Its totient is φ = 6276768816.

The previous prime is 11223136531. The next prime is 11223136537. The reversal of 11223136533 is 33563132211.

It is not a de Polignac number, because 11223136533 - 2¹ = 11223136531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11223136533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223136531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5684493 + ... + 5686466.

It is an arithmetic number, because the mean of its divisors is an integer number (1091612160).

Almost surely, 2^11223136533 is an apocalyptic number.

It is an amenable number.

11223136533 is a deficient number, since it is larger than the sum of its proper divisors (6242658027).

11223136533 is a wasteful number, since it uses less digits than its factorization.

11223136533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11371016.

The product of its digits is 9720, while the sum is 30.

Adding to 11223136533 its reverse (33563132211), we get a palindrome (44786268744).

The spelling of 11223136533 in words is "eleven billion, two hundred twenty-three million, one hundred thirty-six thousand, five hundred thirty-three".