13180911503 has 4 divisors (see below), whose sum is σ = 13181311248. Its totient is φ = 13180511760.

The previous prime is 13180911493. The next prime is 13180911509. The reversal of 13180911503 is 30511908131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30511908131 = 31 ⋅984255101.

It is a cyclic number.

It is not a de Polignac number, because 13180911503 - 2²² = 13176717199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13180911503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13180911509) 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 3 ways as a sum of consecutive naturals, for example, 145478 + ... + 218003.

It is an arithmetic number, because the mean of its divisors is an integer number (3295327812).

Almost surely, 2^13180911503 is an apocalyptic number.

13180911503 is a deficient number, since it is larger than the sum of its proper divisors (399745).

13180911503 is an equidigital number, since it uses as much as digits as its factorization.

13180911503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399744.

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 13180911503 in words is "thirteen billion, one hundred eighty million, nine hundred eleven thousand, five hundred three".