20003561300317 has 16 divisors (see below), whose sum is σ = 23870554277760. Its totient is φ = 16399954847808.

The previous prime is 20003561300309. The next prime is 20003561300377. The reversal of 20003561300317 is 71300316530002.

It is not a de Polignac number, because 20003561300317 - 2³ = 20003561300309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003561300377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460444218 + ... + 460487659.

It is an arithmetic number, because the mean of its divisors is an integer number (1491909642360).

Almost surely, 2^{20003561300317} is an apocalyptic number.

It is an amenable number.

20003561300317 is a deficient number, since it is larger than the sum of its proper divisors (3866992977443).

20003561300317 is a wasteful number, since it uses less digits than its factorization.

20003561300317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920932020.

The product of its (nonzero) digits is 11340, while the sum is 31.

Adding to 20003561300317 its reverse (71300316530002), we get a palindrome (91303877830319).

The spelling of 20003561300317 in words is "twenty trillion, three billion, five hundred sixty-one million, three hundred thousand, three hundred seventeen".