13021312211223 has 16 divisors (see below), whose sum is σ = 17485953161856. Its totient is φ = 8618859231840.

The previous prime is 13021312211189. The next prime is 13021312211231. The reversal of 13021312211223 is 32211221312031.

It is not a de Polignac number, because 13021312211223 - 2¹⁷ = 13021312080151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13021312211193 and 13021312211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021312211423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10169713 + ... + 11378298.

It is an arithmetic number, because the mean of its divisors is an integer number (1092872072616).

Almost surely, 2^{13021312211223} is an apocalyptic number.

13021312211223 is a deficient number, since it is larger than the sum of its proper divisors (4464640950633).

13021312211223 is a wasteful number, since it uses less digits than its factorization.

13021312211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21549454.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 13021312211223 its reverse (32211221312031), we get a palindrome (45232533523254).

The spelling of 13021312211223 in words is "thirteen trillion, twenty-one billion, three hundred twelve million, two hundred eleven thousand, two hundred twenty-three".