13211540403 has 8 divisors (see below), whose sum is σ = 17649200016. Its totient is φ = 8790787200.

The previous prime is 13211540393. The next prime is 13211540417. The reversal of 13211540403 is 30404511231.

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 13211540403 - 2⁶ = 13211540339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13211540443) 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, 4224778 + ... + 4227903.

It is an arithmetic number, because the mean of its divisors is an integer number (2206150002).

Almost surely, 2^13211540403 is an apocalyptic number.

13211540403 is a deficient number, since it is larger than the sum of its proper divisors (4437659613).

13211540403 is an equidigital number, since it uses as much as digits as its factorization.

13211540403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453205.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 13211540403 in words is "thirteen billion, two hundred eleven million, five hundred forty thousand, four hundred three".