11311323313 has 2 divisors, whose sum is σ = 11311323314. Its totient is φ = 11311323312.

The previous prime is 11311323293. The next prime is 11311323343. The reversal of 11311323313 is 31332311311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11077141504 + 234181809 = 105248^2 + 15303^2 .

It is a cyclic number.

It is not a de Polignac number, because 11311323313 - 2⁵ = 11311323281 is a prime.

It is not a weakly prime, because it can be changed into another prime (11311323343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655661656 + 5655661657.

It is an arithmetic number, because the mean of its divisors is an integer number (5655661657).

Almost surely, 2^11311323313 is an apocalyptic number.

It is an amenable number.

11311323313 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311323313 is an equidigital number, since it uses as much as digits as its factorization.

11311323313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 22.

Adding to 11311323313 its reverse (31332311311), we get a palindrome (42643634624).

The spelling of 11311323313 in words is "eleven billion, three hundred eleven million, three hundred twenty-three thousand, three hundred thirteen".