12431043424 has 24 divisors (see below), whose sum is σ = 24503478048. Its totient is φ = 6207937920.

The previous prime is 12431043403. The next prime is 12431043461. The reversal of 12431043424 is 42434013421.

12431043424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12431043392 and 12431043401.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 210312 + ... + 262855.

It is an arithmetic number, because the mean of its divisors is an integer number (1020978252).

Almost surely, 2^12431043424 is an apocalyptic number.

It is an amenable number.

12431043424 is a deficient number, since it is larger than the sum of its proper divisors (12072434624).

12431043424 is an equidigital number, since it uses as much as digits as its factorization.

12431043424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473998 (or 473990 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12431043424 its reverse (42434013421), we get a palindrome (54865056845).

The spelling of 12431043424 in words is "twelve billion, four hundred thirty-one million, forty-three thousand, four hundred twenty-four".