12321211231 has 8 divisors (see below), whose sum is σ = 14082704000. Its totient is φ = 10560048408.

The previous prime is 12321211229. The next prime is 12321211247. The reversal of 12321211231 is 13211212321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12321211231 - 2¹ = 12321211229 is a prime.

It is a super-2 number, since 2×12321211231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12321211199 and 12321211208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321211211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3520 + ... + 157018.

It is an arithmetic number, because the mean of its divisors is an integer number (1760338000).

Almost surely, 2^12321211231 is an apocalyptic number.

12321211231 is a deficient number, since it is larger than the sum of its proper divisors (1761492769).

12321211231 is a wasteful number, since it uses less digits than its factorization.

12321211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164973.

The product of its digits is 144, while the sum is 19.

Adding to 12321211231 its reverse (13211212321), we get a palindrome (25532423552).

The spelling of 12321211231 in words is "twelve billion, three hundred twenty-one million, two hundred eleven thousand, two hundred thirty-one".