12321112113 has 24 divisors (see below), whose sum is σ = 18230248608. Its totient is φ = 8014591872.

The previous prime is 12321112093. The next prime is 12321112123. The reversal of 12321112113 is 31121112321.

It is not a de Polignac number, because 12321112113 - 2⁸ = 12321111857 is a prime.

It is a super-2 number, since 2×12321112113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12321112123) 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, 361806 + ... + 394392.

It is an arithmetic number, because the mean of its divisors is an integer number (759593692).

Almost surely, 2^12321112113 is an apocalyptic number.

It is an amenable number.

12321112113 is a deficient number, since it is larger than the sum of its proper divisors (5909136495).

12321112113 is a wasteful number, since it uses less digits than its factorization.

12321112113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33613 (or 33610 counting only the distinct ones).

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

Adding to 12321112113 its reverse (31121112321), we get a palindrome (43442224434).

The spelling of 12321112113 in words is "twelve billion, three hundred twenty-one million, one hundred twelve thousand, one hundred thirteen".