12424223131 has 4 divisors (see below), whose sum is σ = 12688568352. Its totient is φ = 12159877912.

The previous prime is 12424223117. The next prime is 12424223137. The reversal of 12424223131 is 13132242421.

12424223131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12424223131 - 2⁹ = 12424222619 is a prime.

It is a super-2 number, since 2×12424223131² (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 = 12424223096 and 12424223105.

It is not an unprimeable number, because it can be changed into a prime (12424223137) 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 3 ways as a sum of consecutive naturals, for example, 132172540 + ... + 132172633.

It is an arithmetic number, because the mean of its divisors is an integer number (3172142088).

Almost surely, 2^12424223131 is an apocalyptic number.

12424223131 is a deficient number, since it is larger than the sum of its proper divisors (264345221).

12424223131 is an equidigital number, since it uses as much as digits as its factorization.

12424223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264345220.

The product of its digits is 2304, while the sum is 25.

Adding to 12424223131 its reverse (13132242421), we get a palindrome (25556465552).

The spelling of 12424223131 in words is "twelve billion, four hundred twenty-four million, two hundred twenty-three thousand, one hundred thirty-one".