12808134431 has 8 divisors (see below), whose sum is σ = 12948630240. Its totient is φ = 12667811328.

The previous prime is 12808134421. The next prime is 12808134491. The reversal of 12808134431 is 13443180821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12808134431 is a prime.

It is a super-2 number, since 2×12808134431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12808134391 and 12808134400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808134421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108875 + ... + 193571.

It is an arithmetic number, because the mean of its divisors is an integer number (1618578780).

Almost surely, 2^12808134431 is an apocalyptic number.

12808134431 is a deficient number, since it is larger than the sum of its proper divisors (140495809).

12808134431 is an equidigital number, since it uses as much as digits as its factorization.

12808134431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86353.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 12808134431 in words is "twelve billion, eight hundred eight million, one hundred thirty-four thousand, four hundred thirty-one".