13113223213 has 2 divisors, whose sum is σ = 13113223214. Its totient is φ = 13113223212.

The previous prime is 13113223171. The next prime is 13113223237. The reversal of 13113223213 is 31232231131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12185289769 + 927933444 = 110387^2 + 30462^2 .

It is an emirp because it is prime and its reverse (31232231131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13113223213 - 2⁹ = 13113222701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13113223273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556611606 + 6556611607.

It is an arithmetic number, because the mean of its divisors is an integer number (6556611607).

Almost surely, 2^13113223213 is an apocalyptic number.

It is an amenable number.

13113223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113223213 is an equidigital number, since it uses as much as digits as its factorization.

13113223213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

Adding to 13113223213 its reverse (31232231131), we get a palindrome (44345454344).

The spelling of 13113223213 in words is "thirteen billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred thirteen".