13211131223 has 2 divisors, whose sum is σ = 13211131224. Its totient is φ = 13211131222.

The previous prime is 13211131189. The next prime is 13211131247. The reversal of 13211131223 is 32213111231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13211131223 - 2³⁰ = 12137389399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13211131195 and 13211131204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13211131123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605565611 + 6605565612.

It is an arithmetic number, because the mean of its divisors is an integer number (6605565612).

Almost surely, 2^13211131223 is an apocalyptic number.

13211131223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211131223 is an equidigital number, since it uses as much as digits as its factorization.

13211131223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

Adding to 13211131223 its reverse (32213111231), we get a palindrome (45424242454).

The spelling of 13211131223 in words is "thirteen billion, two hundred eleven million, one hundred thirty-one thousand, two hundred twenty-three".