191303793041 has 2 divisors, whose sum is σ = 191303793042. Its totient is φ = 191303793040.

The previous prime is 191303793019. The next prime is 191303793047. The reversal of 191303793041 is 140397303191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150450894400 + 40852898641 = 387880^2 + 202121^2 .

It is an emirp because it is prime and its reverse (140397303191) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191303793041 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 191303793041.

It is not a weakly prime, because it can be changed into another prime (191303793047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95651896520 + 95651896521.

It is an arithmetic number, because the mean of its divisors is an integer number (95651896521).

Almost surely, 2^191303793041 is an apocalyptic number.

It is an amenable number.

191303793041 is a deficient number, since it is larger than the sum of its proper divisors (1).

191303793041 is an equidigital number, since it uses as much as digits as its factorization.

191303793041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The spelling of 191303793041 in words is "one hundred ninety-one billion, three hundred three million, seven hundred ninety-three thousand, forty-one".