20201707205101 has 8 divisors (see below), whose sum is σ = 20410920605880. Its totient is φ = 19992513159168.

The previous prime is 20201707205093. The next prime is 20201707205107. The reversal of 20201707205101 is 10150270710202.

It can be written as a sum of positive squares in 4 ways, for example, as 36452355625 + 20165254849476 = 190925^2 + 4490574^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20201707205101 - 2³ = 20201707205093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20201707205101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201707205107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2735686 + ... + 6920071.

It is an arithmetic number, because the mean of its divisors is an integer number (2551365075735).

Almost surely, 2^{20201707205101} is an apocalyptic number.

It is an amenable number.

20201707205101 is a deficient number, since it is larger than the sum of its proper divisors (209213400779).

20201707205101 is an equidigital number, since it uses as much as digits as its factorization.

20201707205101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9677423.

The product of its (nonzero) digits is 1960, while the sum is 28.

Adding to 20201707205101 its reverse (10150270710202), we get a palindrome (30351977915303).

The spelling of 20201707205101 in words is "twenty trillion, two hundred one billion, seven hundred seven million, two hundred five thousand, one hundred one".