13223215231 has 8 divisors (see below), whose sum is σ = 13937287680. Its totient is φ = 12526349472.

The previous prime is 13223215211. The next prime is 13223215237. The reversal of 13223215231 is 13251232231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13223215231 - 2¹¹ = 13223213183 is a prime.

It is a super-2 number, since 2×13223215231² (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 = 13223215196 and 13223215205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223215237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4300095 + ... + 4303168.

It is an arithmetic number, because the mean of its divisors is an integer number (1742160960).

Almost surely, 2^13223215231 is an apocalyptic number.

13223215231 is a deficient number, since it is larger than the sum of its proper divisors (714072449).

13223215231 is an equidigital number, since it uses as much as digits as its factorization.

13223215231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603345.

The product of its digits is 2160, while the sum is 25.

Adding to 13223215231 its reverse (13251232231), we get a palindrome (26474447462).

The spelling of 13223215231 in words is "thirteen billion, two hundred twenty-three million, two hundred fifteen thousand, two hundred thirty-one".