20013344017 has 2 divisors, whose sum is σ = 20013344018. Its totient is φ = 20013344016.

The previous prime is 20013343991. The next prime is 20013344137. The reversal of 20013344017 is 71044331002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13567823361 + 6445520656 = 116481^2 + 80284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013344017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20013343982 and 20013344000.

It is not a weakly prime, because it can be changed into another prime (20013344717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006672008 + 10006672009.

It is an arithmetic number, because the mean of its divisors is an integer number (10006672009).

Almost surely, 2^20013344017 is an apocalyptic number.

It is an amenable number.

20013344017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013344017 is an equidigital number, since it uses as much as digits as its factorization.

20013344017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 20013344017 its reverse (71044331002), we get a palindrome (91057675019).

The spelling of 20013344017 in words is "twenty billion, thirteen million, three hundred forty-four thousand, seventeen".