11773231191 has 12 divisors (see below), whose sum is σ = 17745160368. Its totient is φ = 7507567584.

The previous prime is 11773231189. The next prime is 11773231199. The reversal of 11773231191 is 19113237711.

It is not a de Polignac number, because 11773231191 - 2¹ = 11773231189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11773231199) 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 in 11 ways as a sum of consecutive naturals, for example, 28437550 + ... + 28437963.

It is an arithmetic number, because the mean of its divisors is an integer number (1478763364).

Almost surely, 2^11773231191 is an apocalyptic number.

11773231191 is a deficient number, since it is larger than the sum of its proper divisors (5971929177).

11773231191 is a wasteful number, since it uses less digits than its factorization.

11773231191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56875542 (or 56875539 counting only the distinct ones).

The product of its digits is 7938, while the sum is 36.

The spelling of 11773231191 in words is "eleven billion, seven hundred seventy-three million, two hundred thirty-one thousand, one hundred ninety-one".