11194973291 has 2 divisors, whose sum is σ = 11194973292. Its totient is φ = 11194973290.

The previous prime is 11194973249. The next prime is 11194973303. The reversal of 11194973291 is 19237949111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11194973291 - 2⁶ = 11194973227 is a prime.

It is not a weakly prime, because it can be changed into another prime (11194973591) 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, 5597486645 + 5597486646.

It is an arithmetic number, because the mean of its divisors is an integer number (5597486646).

Almost surely, 2^11194973291 is an apocalyptic number.

11194973291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11194973291 is an equidigital number, since it uses as much as digits as its factorization.

11194973291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 47.

The spelling of 11194973291 in words is "eleven billion, one hundred ninety-four million, nine hundred seventy-three thousand, two hundred ninety-one".