13221200312403 has 16 divisors (see below), whose sum is σ = 17661805760256. Its totient is φ = 8797373713440.

The previous prime is 13221200312321. The next prime is 13221200312417. The reversal of 13221200312403 is 30421300212231.

It is not a de Polignac number, because 13221200312403 - 2²² = 13221196118099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13221200312483) 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, 4381993 + ... + 6756053.

It is an arithmetic number, because the mean of its divisors is an integer number (1103862860016).

Almost surely, 2^{13221200312403} is an apocalyptic number.

13221200312403 is a deficient number, since it is larger than the sum of its proper divisors (4440605447853).

13221200312403 is a wasteful number, since it uses less digits than its factorization.

13221200312403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377594.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13221200312403 its reverse (30421300212231), we get a palindrome (43642500524634).

The spelling of 13221200312403 in words is "thirteen trillion, two hundred twenty-one billion, two hundred million, three hundred twelve thousand, four hundred three".