191303793019 has 2 divisors, whose sum is σ = 191303793020. Its totient is φ = 191303793018.

The previous prime is 191303792963. The next prime is 191303793041. The reversal of 191303793019 is 910397303191.

191303793019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 191303793019 - 2²¹ = 191301695867 is a prime.

It is a super-2 number, since 2×191303793019² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 191303793019.

It is not a weakly prime, because it can be changed into another prime (191303790019) 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, 95651896509 + 95651896510.

It is an arithmetic number, because the mean of its divisors is an integer number (95651896510).

Almost surely, 2^191303793019 is an apocalyptic number.

191303793019 is a deficient number, since it is larger than the sum of its proper divisors (1).

191303793019 is an equidigital number, since it uses as much as digits as its factorization.

191303793019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137781, while the sum is 46.

The spelling of 191303793019 in words is "one hundred ninety-one billion, three hundred three million, seven hundred ninety-three thousand, nineteen".