20204530211 has 2 divisors, whose sum is σ = 20204530212. Its totient is φ = 20204530210.

The previous prime is 20204530201. The next prime is 20204530301. The reversal of 20204530211 is 11203540202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20204530211 is a prime.

It is not a weakly prime, because it can be changed into another prime (20204530201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102265105 + 10102265106.

It is an arithmetic number, because the mean of its divisors is an integer number (10102265106).

Almost surely, 2^20204530211 is an apocalyptic number.

20204530211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20204530211 is an equidigital number, since it uses as much as digits as its factorization.

20204530211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

Subtracting from 20204530211 its reverse (11203540202), we obtain a palindrome (9000990009).

The spelling of 20204530211 in words is "twenty billion, two hundred four million, five hundred thirty thousand, two hundred eleven".