21134304211 has 2 divisors, whose sum is σ = 21134304212. Its totient is φ = 21134304210.

The previous prime is 21134304203. The next prime is 21134304227. The reversal of 21134304211 is 11240343112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21134304211 - 2³ = 21134304203 is a prime.

It is not a weakly prime, because it can be changed into another prime (21134304251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10567152105 + 10567152106.

It is an arithmetic number, because the mean of its divisors is an integer number (10567152106).

Almost surely, 2^21134304211 is an apocalyptic number.

21134304211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21134304211 is an equidigital number, since it uses as much as digits as its factorization.

21134304211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21134304211 its reverse (11240343112), we get a palindrome (32374647323).

The spelling of 21134304211 in words is "twenty-one billion, one hundred thirty-four million, three hundred four thousand, two hundred eleven".