13043817903 has 8 divisors (see below), whose sum is σ = 17861804848. Its totient is φ = 8460854784.

The previous prime is 13043817893. The next prime is 13043817907. The reversal of 13043817903 is 30971834031.

It is a happy number.

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

It is not a de Polignac number, because 13043817903 - 2⁴ = 13043817887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043817907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58755826 + ... + 58756047.

It is an arithmetic number, because the mean of its divisors is an integer number (2232725606).

Almost surely, 2^13043817903 is an apocalyptic number.

13043817903 is a deficient number, since it is larger than the sum of its proper divisors (4817986945).

13043817903 is a wasteful number, since it uses less digits than its factorization.

13043817903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117511913.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 13043817903 in words is "thirteen billion, forty-three million, eight hundred seventeen thousand, nine hundred three".