12432681823 has 4 divisors (see below), whose sum is σ = 12486973240. Its totient is φ = 12378390408.

The previous prime is 12432681797. The next prime is 12432681841. The reversal of 12432681823 is 32818623421.

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 12432681823 - 2⁹ = 12432681311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432681853) 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, 27145365 + ... + 27145822.

It is an arithmetic number, because the mean of its divisors is an integer number (3121743310).

Almost surely, 2^12432681823 is an apocalyptic number.

12432681823 is a deficient number, since it is larger than the sum of its proper divisors (54291417).

12432681823 is an equidigital number, since it uses as much as digits as its factorization.

12432681823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54291416.

The product of its digits is 110592, while the sum is 40.

The spelling of 12432681823 in words is "twelve billion, four hundred thirty-two million, six hundred eighty-one thousand, eight hundred twenty-three".