12533112231 has 16 divisors (see below), whose sum is σ = 17239455744. Its totient is φ = 8093114784.

The previous prime is 12533112191. The next prime is 12533112247. The reversal of 12533112231 is 13221133521.

It is a happy number.

12533112231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12533112231 - 2⁹ = 12533111719 is a prime.

It is a super-2 number, since 2×12533112231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533112281) 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 15 ways as a sum of consecutive naturals, for example, 228411 + ... + 277916.

It is an arithmetic number, because the mean of its divisors is an integer number (1077465984).

Almost surely, 2^12533112231 is an apocalyptic number.

12533112231 is a deficient number, since it is larger than the sum of its proper divisors (4706343513).

12533112231 is a wasteful number, since it uses less digits than its factorization.

12533112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506590.

The product of its digits is 1080, while the sum is 24.

Adding to 12533112231 its reverse (13221133521), we get a palindrome (25754245752).

The spelling of 12533112231 in words is "twelve billion, five hundred thirty-three million, one hundred twelve thousand, two hundred thirty-one".