21313130200 has 48 divisors (see below), whose sum is σ = 49857110280. Its totient is φ = 8472936960.

The previous prime is 21313130173. The next prime is 21313130219. The reversal of 21313130200 is 203131312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294289 + ... + 359488.

Almost surely, 2^21313130200 is an apocalyptic number.

21313130200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21313130200 is an abundant number, since it is smaller than the sum of its proper divisors (28543980080).

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

21313130200 is a wasteful number, since it uses less digits than its factorization.

21313130200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653956 (or 653947 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21313130200 its reverse (203131312), we get a palindrome (21516261512).

The spelling of 21313130200 in words is "twenty-one billion, three hundred thirteen million, one hundred thirty thousand, two hundred".