12131342223 has 32 divisors (see below), whose sum is σ = 21717652992. Its totient is φ = 5817225600.

The previous prime is 12131342221. The next prime is 12131342231. The reversal of 12131342223 is 32224313121.

It is not a de Polignac number, because 12131342223 - 2¹ = 12131342221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12131342193 and 12131342202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131342221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2016868 + ... + 2022873.

It is an arithmetic number, because the mean of its divisors is an integer number (678676656).

Almost surely, 2^12131342223 is an apocalyptic number.

12131342223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12131342223 is a deficient number, since it is larger than the sum of its proper divisors (9586310769).

12131342223 is a wasteful number, since it uses less digits than its factorization.

12131342223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039775.

The product of its digits is 1728, while the sum is 24.

Adding to 12131342223 its reverse (32224313121), we get a palindrome (44355655344).

The spelling of 12131342223 in words is "twelve billion, one hundred thirty-one million, three hundred forty-two thousand, two hundred twenty-three".