1248206320091 has 2 divisors, whose sum is σ = 1248206320092. Its totient is φ = 1248206320090.

The previous prime is 1248206320007. The next prime is 1248206320133. The reversal of 1248206320091 is 1900236028421.

It is a strong prime.

It is an emirp because it is prime and its reverse (1900236028421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1248206320091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1248206320001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624103160045 + 624103160046.

It is an arithmetic number, because the mean of its divisors is an integer number (624103160046).

Almost surely, 2^{1248206320091} is an apocalyptic number.

1248206320091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248206320091 is an equidigital number, since it uses as much as digits as its factorization.

1248206320091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 1248206320091 in words is "one trillion, two hundred forty-eight billion, two hundred six million, three hundred twenty thousand, ninety-one".