21130334300 has 18 divisors (see below), whose sum is σ = 45852825648. Its totient is φ = 8452133680.

The previous prime is 21130334299. The next prime is 21130334327. The reversal of 21130334300 is 343303112.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 5 ways as a sum of consecutive naturals, for example, 105651572 + ... + 105651771.

Almost surely, 2^21130334300 is an apocalyptic number.

21130334300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21130334300 is an abundant number, since it is smaller than the sum of its proper divisors (24722491348).

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

21130334300 is a wasteful number, since it uses less digits than its factorization.

21130334300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211303357 (or 211303350 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21130334300 its reverse (343303112), we get a palindrome (21473637412).

The spelling of 21130334300 in words is "twenty-one billion, one hundred thirty million, three hundred thirty-four thousand, three hundred".