12434432423 has 24 divisors (see below), whose sum is σ = 14581698048. Its totient is φ = 10572097536.

The previous prime is 12434432411. The next prime is 12434432453. The reversal of 12434432423 is 32423443421.

12434432423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12434432423 - 2¹² = 12434428327 is a prime.

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 12434432423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434432453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3620315 + ... + 3623747.

It is an arithmetic number, because the mean of its divisors is an integer number (607570752).

Almost surely, 2^12434432423 is an apocalyptic number.

12434432423 is a deficient number, since it is larger than the sum of its proper divisors (2147265625).

12434432423 is a wasteful number, since it uses less digits than its factorization.

12434432423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023 (or 4016 counting only the distinct ones).

The product of its digits is 55296, while the sum is 32.

Adding to 12434432423 its reverse (32423443421), we get a palindrome (44857875844).

The spelling of 12434432423 in words is "twelve billion, four hundred thirty-four million, four hundred thirty-two thousand, four hundred twenty-three".