20110105825717 has 2 divisors, whose sum is σ = 20110105825718. Its totient is φ = 20110105825716.

The previous prime is 20110105825703. The next prime is 20110105825729. The reversal of 20110105825717 is 71752850101102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20106175288081 + 3930537636 = 4483991^2 + 62694^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110105825717 - 2¹¹ = 20110105823669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20110105825717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110105825417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055052912858 + 10055052912859.

It is an arithmetic number, because the mean of its divisors is an integer number (10055052912859).

Almost surely, 2^{20110105825717} is an apocalyptic number.

It is an amenable number.

20110105825717 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110105825717 is an equidigital number, since it uses as much as digits as its factorization.

20110105825717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 40.

Adding to 20110105825717 its reverse (71752850101102), we get a palindrome (91862955926819).

The spelling of 20110105825717 in words is "twenty trillion, one hundred ten billion, one hundred five million, eight hundred twenty-five thousand, seven hundred seventeen".