11205445091 has 2 divisors, whose sum is σ = 11205445092. Its totient is φ = 11205445090.

The previous prime is 11205445061. The next prime is 11205445117. The reversal of 11205445091 is 19054450211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11205445091 - 2²² = 11201250787 is a prime.

It is not a weakly prime, because it can be changed into another prime (11205445001) 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, 5602722545 + 5602722546.

It is an arithmetic number, because the mean of its divisors is an integer number (5602722546).

Almost surely, 2^11205445091 is an apocalyptic number.

11205445091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11205445091 is an equidigital number, since it uses as much as digits as its factorization.

11205445091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 11205445091 in words is "eleven billion, two hundred five million, four hundred forty-five thousand, ninety-one".