13221031001323 has 4 divisors (see below), whose sum is σ = 13254001153848. Its totient is φ = 13188060848800.

The previous prime is 13221031001261. The next prime is 13221031001329. The reversal of 13221031001323 is 32310013012231.

13221031001323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13221031001323 - 2¹⁷ = 13221030870251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221031001294 and 13221031001303.

It is not an unprimeable number, because it can be changed into a prime (13221031001329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16485075661 + ... + 16485076462.

It is an arithmetic number, because the mean of its divisors is an integer number (3313500288462).

Almost surely, 2^{13221031001323} is an apocalyptic number.

13221031001323 is a deficient number, since it is larger than the sum of its proper divisors (32970152525).

13221031001323 is an equidigital number, since it uses as much as digits as its factorization.

13221031001323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32970152524.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13221031001323 its reverse (32310013012231), we get a palindrome (45531044013554).

The spelling of 13221031001323 in words is "thirteen trillion, two hundred twenty-one billion, thirty-one million, one thousand, three hundred twenty-three".