13181330903 has 16 divisors (see below), whose sum is σ = 14548724736. Its totient is φ = 11866266720.

The previous prime is 13181330887. The next prime is 13181330909. The reversal of 13181330903 is 30903318131.

It is not a de Polignac number, because 13181330903 - 2⁴ = 13181330887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13181330903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13181330909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134798 + ... + 211028.

It is an arithmetic number, because the mean of its divisors is an integer number (909295296).

Almost surely, 2^13181330903 is an apocalyptic number.

13181330903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13181330903 is a deficient number, since it is larger than the sum of its proper divisors (1367393833).

13181330903 is a wasteful number, since it uses less digits than its factorization.

13181330903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76574.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 13181330903 in words is "thirteen billion, one hundred eighty-one million, three hundred thirty thousand, nine hundred three".