12423323131 has 2 divisors, whose sum is σ = 12423323132. Its totient is φ = 12423323130.

The previous prime is 12423323117. The next prime is 12423323173. The reversal of 12423323131 is 13132332421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12423323131 - 2²³ = 12414934523 is a prime.

It is a super-2 number, since 2×12423323131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12423323096 and 12423323105.

It is not a weakly prime, because it can be changed into another prime (12423320131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211661565 + 6211661566.

It is an arithmetic number, because the mean of its divisors is an integer number (6211661566).

Almost surely, 2^12423323131 is an apocalyptic number.

12423323131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423323131 is an equidigital number, since it uses as much as digits as its factorization.

12423323131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

Adding to 12423323131 its reverse (13132332421), we get a palindrome (25555655552).

The spelling of 12423323131 in words is "twelve billion, four hundred twenty-three million, three hundred twenty-three thousand, one hundred thirty-one".