21130241214 has 16 divisors (see below), whose sum is σ = 42308353152. Its totient is φ = 7035435288.

The previous prime is 21130241213. The next prime is 21130241257. The reversal of 21130241214 is 41214203112.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1988874 + ... + 1999469.

It is an arithmetic number, because the mean of its divisors is an integer number (2644272072).

Almost surely, 2^21130241214 is an apocalyptic number.

21130241214 is an abundant number, since it is smaller than the sum of its proper divisors (21178111938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21130241214 is a wasteful number, since it uses less digits than its factorization.

21130241214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989231.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21130241214 its reverse (41214203112), we get a palindrome (62344444326).

The spelling of 21130241214 in words is "twenty-one billion, one hundred thirty million, two hundred forty-one thousand, two hundred fourteen".