11211168971 has 2 divisors, whose sum is σ = 11211168972. Its totient is φ = 11211168970.

The previous prime is 11211168911. The next prime is 11211168989. The reversal of 11211168971 is 17986111211.

It is a strong prime.

It is an emirp because it is prime and its reverse (17986111211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211168971 - 2⁶ = 11211168907 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211168901) 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, 5605584485 + 5605584486.

It is an arithmetic number, because the mean of its divisors is an integer number (5605584486).

Almost surely, 2^11211168971 is an apocalyptic number.

11211168971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211168971 is an equidigital number, since it uses as much as digits as its factorization.

11211168971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 38.

The spelling of 11211168971 in words is "eleven billion, two hundred eleven million, one hundred sixty-eight thousand, nine hundred seventy-one".