13431134403 has 12 divisors (see below), whose sum is σ = 19410887808. Its totient is φ = 8949307920.

The previous prime is 13431134377. The next prime is 13431134413. The reversal of 13431134403 is 30443113431.

13431134403 is a `hidden beast` number, since 1 + 3 + 4 + 311 + 344 + 0 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-13431134403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13431134413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380643 + ... + 414428.

It is an arithmetic number, because the mean of its divisors is an integer number (1617573984).

Almost surely, 2^13431134403 is an apocalyptic number.

13431134403 is a deficient number, since it is larger than the sum of its proper divisors (5979753405).

13431134403 is a wasteful number, since it uses less digits than its factorization.

13431134403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796954 (or 796951 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 13431134403 its reverse (30443113431), we get a palindrome (43874247834).

The spelling of 13431134403 in words is "thirteen billion, four hundred thirty-one million, one hundred thirty-four thousand, four hundred three".