11221313317 has 2 divisors, whose sum is σ = 11221313318. Its totient is φ = 11221313316.

The previous prime is 11221313293. The next prime is 11221313353. The reversal of 11221313317 is 71331312211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7905165921 + 3316147396 = 88911^2 + 57586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221313317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11221313291 and 11221313300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221313387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610656658 + 5610656659.

It is an arithmetic number, because the mean of its divisors is an integer number (5610656659).

Almost surely, 2^11221313317 is an apocalyptic number.

It is an amenable number.

11221313317 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221313317 is an equidigital number, since it uses as much as digits as its factorization.

11221313317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

Adding to 11221313317 its reverse (71331312211), we get a palindrome (82552625528).

The spelling of 11221313317 in words is "eleven billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred seventeen".