11321221315717 has 2 divisors, whose sum is σ = 11321221315718. Its totient is φ = 11321221315716.

The previous prime is 11321221315681. The next prime is 11321221315739. The reversal of 11321221315717 is 71751312212311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11219813460801 + 101407854916 = 3349599^2 + 318446^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321221315717 - 2¹⁵ = 11321221282949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321221315757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660610657858 + 5660610657859.

It is an arithmetic number, because the mean of its divisors is an integer number (5660610657859).

Almost surely, 2^{11321221315717} is an apocalyptic number.

It is an amenable number.

11321221315717 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321221315717 is an equidigital number, since it uses as much as digits as its factorization.

11321221315717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 37.

The spelling of 11321221315717 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred fifteen thousand, seven hundred seventeen".