12324134431 has 4 divisors (see below), whose sum is σ = 14084725072. Its totient is φ = 10563543792.

The previous prime is 12324134423. The next prime is 12324134441. The reversal of 12324134431 is 13443142321.

It is a happy number.

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 12324134431 - 2³ = 12324134423 is a prime.

It is a super-2 number, since 2×12324134431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12324134431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12324134441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880295310 + ... + 880295323.

It is an arithmetic number, because the mean of its divisors is an integer number (3521181268).

Almost surely, 2^12324134431 is an apocalyptic number.

12324134431 is a deficient number, since it is larger than the sum of its proper divisors (1760590641).

12324134431 is an equidigital number, since it uses as much as digits as its factorization.

12324134431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760590640.

The product of its digits is 6912, while the sum is 28.

Adding to 12324134431 its reverse (13443142321), we get a palindrome (25767276752).

The spelling of 12324134431 in words is "twelve billion, three hundred twenty-four million, one hundred thirty-four thousand, four hundred thirty-one".