21717230300 has 18 divisors (see below), whose sum is σ = 47126389968. Its totient is φ = 8686892080.

The previous prime is 21717230287. The next prime is 21717230317. The reversal of 21717230300 is 303271712.

It is a self number, because there is not a number n which added to its sum of digits gives 21717230300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108586052 + ... + 108586251.

It is an arithmetic number, because the mean of its divisors is an integer number (2618132776).

Almost surely, 2^21717230300 is an apocalyptic number.

21717230300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21717230300 is an abundant number, since it is smaller than the sum of its proper divisors (25409159668).

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

21717230300 is a wasteful number, since it uses less digits than its factorization.

21717230300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217172317 (or 217172310 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The spelling of 21717230300 in words is "twenty-one billion, seven hundred seventeen million, two hundred thirty thousand, three hundred".