12132012423 has 32 divisors (see below), whose sum is σ = 17143372800. Its totient is φ = 7615745280.

The previous prime is 12132012407. The next prime is 12132012467. The reversal of 12132012423 is 32421023121.

It is not a de Polignac number, because 12132012423 - 2⁴ = 12132012407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12132012423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132013423) 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, 3015153 + ... + 3019173.

It is an arithmetic number, because the mean of its divisors is an integer number (535730400).

Almost surely, 2^12132012423 is an apocalyptic number.

12132012423 is a deficient number, since it is larger than the sum of its proper divisors (5011360377).

12132012423 is a wasteful number, since it uses less digits than its factorization.

12132012423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12132012423 its reverse (32421023121), we get a palindrome (44553035544).

The spelling of 12132012423 in words is "twelve billion, one hundred thirty-two million, twelve thousand, four hundred twenty-three".