13221122323 has 4 divisors (see below), whose sum is σ = 13528590328. Its totient is φ = 12913654320.

The previous prime is 13221122293. The next prime is 13221122339. The reversal of 13221122323 is 32322112231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32322112231 = 2447 ⋅13208873.

It is a cyclic number.

It is not a de Polignac number, because 13221122323 - 2⁹ = 13221121811 is a prime.

It is a super-3 number, since 3×13221122323³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221122294 and 13221122303.

It is not an unprimeable number, because it can be changed into a prime (13221122353) 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, 153733938 + ... + 153734023.

It is an arithmetic number, because the mean of its divisors is an integer number (3382147582).

Almost surely, 2^13221122323 is an apocalyptic number.

13221122323 is a deficient number, since it is larger than the sum of its proper divisors (307468005).

13221122323 is an equidigital number, since it uses as much as digits as its factorization.

13221122323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307468004.

The product of its digits is 864, while the sum is 22.

Adding to 13221122323 its reverse (32322112231), we get a palindrome (45543234554).

The spelling of 13221122323 in words is "thirteen billion, two hundred twenty-one million, one hundred twenty-two thousand, three hundred twenty-three".