20204315211 has 4 divisors (see below), whose sum is σ = 26939086952. Its totient is φ = 13469543472.

The previous prime is 20204315147. The next prime is 20204315249. The reversal of 20204315211 is 11251340202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20204315211 - 2⁶ = 20204315147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20204315251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3367385866 + ... + 3367385871.

It is an arithmetic number, because the mean of its divisors is an integer number (6734771738).

Almost surely, 2^20204315211 is an apocalyptic number.

20204315211 is a deficient number, since it is larger than the sum of its proper divisors (6734771741).

20204315211 is an equidigital number, since it uses as much as digits as its factorization.

20204315211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734771740.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20204315211 its reverse (11251340202), we get a palindrome (31455655413).

The spelling of 20204315211 in words is "twenty billion, two hundred four million, three hundred fifteen thousand, two hundred eleven".