13122121312223 has 24 divisors (see below), whose sum is σ = 16813862881920. Its totient is φ = 10125757419120.

The previous prime is 13122121312199. The next prime is 13122121312241. The reversal of 13122121312223 is 32221312122131.

It is not a de Polignac number, because 13122121312223 - 2⁶ = 13122121312159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13122121312192 and 13122121312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122121312273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118125593 + ... + 118236626.

It is an arithmetic number, because the mean of its divisors is an integer number (700577620080).

Almost surely, 2^{13122121312223} is an apocalyptic number.

13122121312223 is a deficient number, since it is larger than the sum of its proper divisors (3691741569697).

13122121312223 is a wasteful number, since it uses less digits than its factorization.

13122121312223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236362347 (or 236362340 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

Adding to 13122121312223 its reverse (32221312122131), we get a palindrome (45343433434354).

The spelling of 13122121312223 in words is "thirteen trillion, one hundred twenty-two billion, one hundred twenty-one million, three hundred twelve thousand, two hundred twenty-three".