12323256231 has 16 divisors (see below), whose sum is σ = 19303562880. Its totient is φ = 6894129120.

The previous prime is 12323256229. The next prime is 12323256247. The reversal of 12323256231 is 13265232321.

It is not a de Polignac number, because 12323256231 - 2¹ = 12323256229 is a prime.

It is a super-2 number, since 2×12323256231² (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 (12323246231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14362341 + ... + 14363198.

It is an arithmetic number, because the mean of its divisors is an integer number (1206472680).

Almost surely, 2^12323256231 is an apocalyptic number.

12323256231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12323256231 is a deficient number, since it is larger than the sum of its proper divisors (6980306649).

12323256231 is a wasteful number, since it uses less digits than its factorization.

12323256231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28725566.

The product of its digits is 12960, while the sum is 30.

Adding to 12323256231 its reverse (13265232321), we get a palindrome (25588488552).

The spelling of 12323256231 in words is "twelve billion, three hundred twenty-three million, two hundred fifty-six thousand, two hundred thirty-one".