20205330001 has 4 divisors (see below), whose sum is σ = 20205882432. Its totient is φ = 20204777572.

The previous prime is 20205329929. The next prime is 20205330011. The reversal of 20205330001 is 10003350202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20205330001 - 2⁷ = 20205329873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20205330011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217141 + ... + 295906.

It is an arithmetic number, because the mean of its divisors is an integer number (5051470608).

Almost surely, 2^20205330001 is an apocalyptic number.

It is an amenable number.

20205330001 is a deficient number, since it is larger than the sum of its proper divisors (552431).

20205330001 is an equidigital number, since it uses as much as digits as its factorization.

20205330001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552430.

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 20205330001 its reverse (10003350202), we get a palindrome (30208680203).

The spelling of 20205330001 in words is "twenty billion, two hundred five million, three hundred thirty thousand, one".