11391320908771 has 2 divisors, whose sum is σ = 11391320908772. Its totient is φ = 11391320908770.

The previous prime is 11391320908739. The next prime is 11391320908871. The reversal of 11391320908771 is 17780902319311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11391320908771 - 2⁵ = 11391320908739 is a prime.

It is a super-2 number, since 2×11391320908771² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11391320908711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695660454385 + 5695660454386.

It is an arithmetic number, because the mean of its divisors is an integer number (5695660454386).

Almost surely, 2^{11391320908771} is an apocalyptic number.

11391320908771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11391320908771 is an equidigital number, since it uses as much as digits as its factorization.

11391320908771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 52.

The spelling of 11391320908771 in words is "eleven trillion, three hundred ninety-one billion, three hundred twenty million, nine hundred eight thousand, seven hundred seventy-one".