11323313213 has 2 divisors, whose sum is σ = 11323313214. Its totient is φ = 11323313212.

The previous prime is 11323313189. The next prime is 11323313231. The reversal of 11323313213 is 31231332311.

Together with next prime (11323313231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6471076249 + 4852236964 = 80443^2 + 69658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11323313213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11323333213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5661656606 + 5661656607.

It is an arithmetic number, because the mean of its divisors is an integer number (5661656607).

Almost surely, 2^11323313213 is an apocalyptic number.

It is an amenable number.

11323313213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11323313213 is an equidigital number, since it uses as much as digits as its factorization.

11323313213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 23.

Adding to 11323313213 its reverse (31231332311), we get a palindrome (42554645524).

The spelling of 11323313213 in words is "eleven billion, three hundred twenty-three million, three hundred thirteen thousand, two hundred thirteen".