12091330191 has 8 divisors (see below), whose sum is σ = 16316012160. Its totient is φ = 7963767512.

The previous prime is 12091330187. The next prime is 12091330201. The reversal of 12091330191 is 19103319021.

It is a happy number.

12091330191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12091330191 - 2² = 12091330187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091330171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24279531 + ... + 24280028.

It is an arithmetic number, because the mean of its divisors is an integer number (2039501520).

Almost surely, 2^12091330191 is an apocalyptic number.

12091330191 is a deficient number, since it is larger than the sum of its proper divisors (4224681969).

12091330191 is an equidigital number, since it uses as much as digits as its factorization.

12091330191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48559645.

The product of its (nonzero) digits is 1458, while the sum is 30.

The spelling of 12091330191 in words is "twelve billion, ninety-one million, three hundred thirty thousand, one hundred ninety-one".