12012131423 has 2 divisors, whose sum is σ = 12012131424. Its totient is φ = 12012131422.

The previous prime is 12012131377. The next prime is 12012131513. The reversal of 12012131423 is 32413121021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12012131423 - 2²⁰ = 12011082847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012131395 and 12012131404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012131323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006065711 + 6006065712.

It is an arithmetic number, because the mean of its divisors is an integer number (6006065712).

Almost surely, 2^12012131423 is an apocalyptic number.

12012131423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012131423 is an equidigital number, since it uses as much as digits as its factorization.

12012131423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12012131423 its reverse (32413121021), we get a palindrome (44425252444).

The spelling of 12012131423 in words is "twelve billion, twelve million, one hundred thirty-one thousand, four hundred twenty-three".