11405513191 has 2 divisors, whose sum is σ = 11405513192. Its totient is φ = 11405513190.

The previous prime is 11405513123. The next prime is 11405513233. The reversal of 11405513191 is 19131550411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11405513191 - 2¹⁷ = 11405382119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11405513101) 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, 5702756595 + 5702756596.

It is an arithmetic number, because the mean of its divisors is an integer number (5702756596).

Almost surely, 2^11405513191 is an apocalyptic number.

11405513191 is a deficient number, since it is larger than the sum of its proper divisors (1).

11405513191 is an equidigital number, since it uses as much as digits as its factorization.

11405513191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 31.

The spelling of 11405513191 in words is "eleven billion, four hundred five million, five hundred thirteen thousand, one hundred ninety-one".