1720613241311 has 2 divisors, whose sum is σ = 1720613241312. Its totient is φ = 1720613241310.

The previous prime is 1720613241247. The next prime is 1720613241317. The reversal of 1720613241311 is 1131423160271.

It is a strong prime.

It is an emirp because it is prime and its reverse (1131423160271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1720613241311 - 2⁶ = 1720613241247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1720613241317) 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, 860306620655 + 860306620656.

It is an arithmetic number, because the mean of its divisors is an integer number (860306620656).

Almost surely, 2^{1720613241311} is an apocalyptic number.

1720613241311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1720613241311 is an equidigital number, since it uses as much as digits as its factorization.

1720613241311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 1720613241311 in words is "one trillion, seven hundred twenty billion, six hundred thirteen million, two hundred forty-one thousand, three hundred eleven".