12431144403 has 6 divisors (see below), whose sum is σ = 17956097484. Its totient is φ = 8287429596.

The previous prime is 12431144399. The next prime is 12431144419. The reversal of 12431144403 is 30444113421.

12431144403 is a `hidden beast` number, since 1 + 243 + 1 + 14 + 4 + 403 = 666.

It is not a de Polignac number, because 12431144403 - 2² = 12431144399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12431144483) 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 5 ways as a sum of consecutive naturals, for example, 690619125 + ... + 690619142.

It is an arithmetic number, because the mean of its divisors is an integer number (2992682914).

Almost surely, 2^12431144403 is an apocalyptic number.

12431144403 is a deficient number, since it is larger than the sum of its proper divisors (5524953081).

12431144403 is a wasteful number, since it uses less digits than its factorization.

12431144403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381238273 (or 1381238270 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 12431144403 its reverse (30444113421), we get a palindrome (42875257824).

The spelling of 12431144403 in words is "twelve billion, four hundred thirty-one million, one hundred forty-four thousand, four hundred three".