13111313213 has 2 divisors, whose sum is σ = 13111313214. Its totient is φ = 13111313212.

The previous prime is 13111313191. The next prime is 13111313219. The reversal of 13111313213 is 31231311131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13026341689 + 84971524 = 114133^2 + 9218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111313213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111313219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555656606 + 6555656607.

It is an arithmetic number, because the mean of its divisors is an integer number (6555656607).

Almost surely, 2^13111313213 is an apocalyptic number.

It is an amenable number.

13111313213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111313213 is an equidigital number, since it uses as much as digits as its factorization.

13111313213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 20.

Adding to 13111313213 its reverse (31231311131), we get a palindrome (44342624344).

The spelling of 13111313213 in words is "thirteen billion, one hundred eleven million, three hundred thirteen thousand, two hundred thirteen".