20432203500017 has 2 divisors, whose sum is σ = 20432203500018. Its totient is φ = 20432203500016.

The previous prime is 20432203499971. The next prime is 20432203500043. The reversal of 20432203500017 is 71000530223402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15846099872656 + 4586103627361 = 3980716^2 + 2141519^2 .

It is a cyclic number.

It is not a de Polignac number, because 20432203500017 - 2¹⁶ = 20432203434481 is a prime.

It is a super-2 number, since 2×20432203500017² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20432203500047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216101750008 + 10216101750009.

It is an arithmetic number, because the mean of its divisors is an integer number (10216101750009).

Almost surely, 2^{20432203500017} is an apocalyptic number.

It is an amenable number.

20432203500017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432203500017 is an equidigital number, since it uses as much as digits as its factorization.

20432203500017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 20432203500017 its reverse (71000530223402), we get a palindrome (91432733723419).

The spelling of 20432203500017 in words is "twenty trillion, four hundred thirty-two billion, two hundred three million, five hundred thousand, seventeen".