12132311211 has 24 divisors (see below), whose sum is σ = 18618721680. Its totient is φ = 7598235456.

The previous prime is 12132311197. The next prime is 12132311221. The reversal of 12132311211 is 11211323121.

12132311211 is a `hidden beast` number, since 12 + 132 + 311 + 211 = 666.

It is not a de Polignac number, because 12132311211 - 2¹⁵ = 12132278443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12132311221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 618505 + ... + 637818.

It is an arithmetic number, because the mean of its divisors is an integer number (775780070).

Almost surely, 2^12132311211 is an apocalyptic number.

12132311211 is a deficient number, since it is larger than the sum of its proper divisors (6486410469).

12132311211 is a wasteful number, since it uses less digits than its factorization.

12132311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256395 (or 1256392 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 12132311211 its reverse (11211323121), we get a palindrome (23343634332).

The spelling of 12132311211 in words is "twelve billion, one hundred thirty-two million, three hundred eleven thousand, two hundred eleven".