12231031311 has 6 divisors (see below), whose sum is σ = 17667045240. Its totient is φ = 8154020868.

The previous prime is 12231031297. The next prime is 12231031313. The reversal of 12231031311 is 11313013221.

12231031311 is a `hidden beast` number, since 12 + 2 + 310 + 31 + 311 = 666.

12231031311 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 12231031311 - 2²⁹ = 11694160399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231031313) 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 5 ways as a sum of consecutive naturals, for example, 679501731 + ... + 679501748.

It is an arithmetic number, because the mean of its divisors is an integer number (2944507540).

Almost surely, 2^12231031311 is an apocalyptic number.

12231031311 is a deficient number, since it is larger than the sum of its proper divisors (5436013929).

12231031311 is a wasteful number, since it uses less digits than its factorization.

12231031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359003485 (or 1359003482 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12231031311 its reverse (11313013221), we get a palindrome (23544044532).

The spelling of 12231031311 in words is "twelve billion, two hundred thirty-one million, thirty-one thousand, three hundred eleven".