11011211201191 has 2 divisors, whose sum is σ = 11011211201192. Its totient is φ = 11011211201190.

The previous prime is 11011211201119. The next prime is 11011211201209. The reversal of 11011211201191 is 19110211211011.

11011211201191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (11011211201119) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11011211201191 - 2⁷ = 11011211201063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011211208191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505605600595 + 5505605600596.

It is an arithmetic number, because the mean of its divisors is an integer number (5505605600596).

Almost surely, 2^{11011211201191} is an apocalyptic number.

11011211201191 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011211201191 is an equidigital number, since it uses as much as digits as its factorization.

11011211201191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 22.

The spelling of 11011211201191 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred one thousand, one hundred ninety-one".