21331130214 has 16 divisors (see below), whose sum is σ = 42665963328. Its totient is φ = 7109759592.

The previous prime is 21331130207. The next prime is 21331130257. The reversal of 21331130214 is 41203113312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76372 + ... + 220215.

It is an arithmetic number, because the mean of its divisors is an integer number (2666622708).

Almost surely, 2^21331130214 is an apocalyptic number.

21331130214 is an abundant number, since it is smaller than the sum of its proper divisors (21334833114).

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

21331130214 is a wasteful number, since it uses less digits than its factorization.

21331130214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308579.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21331130214 its reverse (41203113312), we get a palindrome (62534243526).

The spelling of 21331130214 in words is "twenty-one billion, three hundred thirty-one million, one hundred thirty thousand, two hundred fourteen".