13022321123 has 4 divisors (see below), whose sum is σ = 14882652720. Its totient is φ = 11161989528.

The previous prime is 13022321119. The next prime is 13022321129. The reversal of 13022321123 is 32112322031.

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 13022321123 - 2² = 13022321119 is a prime.

It is a super-2 number, since 2×13022321123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13022321095 and 13022321104.

It is not an unprimeable number, because it can be changed into a prime (13022321129) 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, 930165788 + ... + 930165801.

It is an arithmetic number, because the mean of its divisors is an integer number (3720663180).

Almost surely, 2^13022321123 is an apocalyptic number.

13022321123 is a deficient number, since it is larger than the sum of its proper divisors (1860331597).

13022321123 is an equidigital number, since it uses as much as digits as its factorization.

13022321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860331596.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13022321123 its reverse (32112322031), we get a palindrome (45134643154).

The spelling of 13022321123 in words is "thirteen billion, twenty-two million, three hundred twenty-one thousand, one hundred twenty-three".