21130241211 has 12 divisors (see below), whose sum is σ = 30564517360. Its totient is φ = 14066954640.

The previous prime is 21130241191. The next prime is 21130241213. The reversal of 21130241211 is 11214203112.

21130241211 is a `hidden beast` number, since 211 + 3 + 0 + 241 + 211 = 666.

It is not a de Polignac number, because 21130241211 - 2¹⁴ = 21130224827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21130241213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1649335 + ... + 1662096.

Almost surely, 2^21130241211 is an apocalyptic number.

21130241211 is a deficient number, since it is larger than the sum of its proper divisors (9434276149).

21130241211 is a wasteful number, since it uses less digits than its factorization.

21130241211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312146 (or 3312143 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21130241211 its reverse (11214203112), we get a palindrome (32344444323).

The spelling of 21130241211 in words is "twenty-one billion, one hundred thirty million, two hundred forty-one thousand, two hundred eleven".