13021233213223 has 16 divisors (see below), whose sum is σ = 13384081561536. Its totient is φ = 12658963703040.

The previous prime is 13021233213217. The next prime is 13021233213227. The reversal of 13021233213223 is 32231233212031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13021233213223 - 2¹³ = 13021233205031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021233213191 and 13021233213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021233213227) 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, 265970115 + ... + 266019067.

It is an arithmetic number, because the mean of its divisors is an integer number (836505097596).

Almost surely, 2^{13021233213223} is an apocalyptic number.

13021233213223 is a deficient number, since it is larger than the sum of its proper divisors (362848348313).

13021233213223 is a wasteful number, since it uses less digits than its factorization.

13021233213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54714.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 13021233213223 its reverse (32231233212031), we get a palindrome (45252466425254).

The spelling of 13021233213223 in words is "thirteen trillion, twenty-one billion, two hundred thirty-three million, two hundred thirteen thousand, two hundred twenty-three".