20204424101 has 8 divisors (see below), whose sum is σ = 20396686200. Its totient is φ = 20012287680.

The previous prime is 20204424067. The next prime is 20204424157. The reversal of 20204424101 is 10142440202.

It can be written as a sum of positive squares in 4 ways, for example, as 4729312900 + 15475111201 = 68770^2 + 124399^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20204424101 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 (20204424001) 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, 309071 + ... + 368691.

It is an arithmetic number, because the mean of its divisors is an integer number (2549585775).

Almost surely, 2^20204424101 is an apocalyptic number.

It is an amenable number.

20204424101 is a deficient number, since it is larger than the sum of its proper divisors (192262099).

20204424101 is a wasteful number, since it uses less digits than its factorization.

20204424101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62839.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20204424101 its reverse (10142440202), we get a palindrome (30346864303).

The spelling of 20204424101 in words is "twenty billion, two hundred four million, four hundred twenty-four thousand, one hundred one".