20104443211 has 2 divisors, whose sum is σ = 20104443212. Its totient is φ = 20104443210.

The previous prime is 20104443199. The next prime is 20104443263. The reversal of 20104443211 is 11234440102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20104443211 - 2⁵ = 20104443179 is a prime.

It is not a weakly prime, because it can be changed into another prime (20104443811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052221605 + 10052221606.

It is an arithmetic number, because the mean of its divisors is an integer number (10052221606).

Almost surely, 2^20104443211 is an apocalyptic number.

20104443211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104443211 is an equidigital number, since it uses as much as digits as its factorization.

20104443211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20104443211 its reverse (11234440102), we get a palindrome (31338883313).

The spelling of 20104443211 in words is "twenty billion, one hundred four million, four hundred forty-three thousand, two hundred eleven".