20117700124763 has 2 divisors, whose sum is σ = 20117700124764. Its totient is φ = 20117700124762.

The previous prime is 20117700124757. The next prime is 20117700124793. The reversal of 20117700124763 is 36742100771102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20117700124763 - 2⁴ = 20117700124747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20117700124763.

It is not a weakly prime, because it can be changed into another prime (20117700124733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058850062381 + 10058850062382.

It is an arithmetic number, because the mean of its divisors is an integer number (10058850062382).

Almost surely, 2^{20117700124763} is an apocalyptic number.

20117700124763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20117700124763 is an equidigital number, since it uses as much as digits as its factorization.

20117700124763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

Adding to 20117700124763 its reverse (36742100771102), we get a palindrome (56859800895865).

The spelling of 20117700124763 in words is "twenty trillion, one hundred seventeen billion, seven hundred million, one hundred twenty-four thousand, seven hundred sixty-three".