21134204300 has 36 divisors (see below), whose sum is σ = 50030428056. Its totient is φ = 7685164800.

The previous prime is 21134204297. The next prime is 21134204323. The reversal of 21134204300 is 340243112.

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

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, 9605357 + ... + 9607556.

Almost surely, 2^21134204300 is an apocalyptic number.

21134204300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21134204300 is an abundant number, since it is smaller than the sum of its proper divisors (28896223756).

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

21134204300 is a wasteful number, since it uses less digits than its factorization.

21134204300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19212938 (or 19212931 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21134204300 its reverse (340243112), we get a palindrome (21474447412).

The spelling of 21134204300 in words is "twenty-one billion, one hundred thirty-four million, two hundred four thousand, three hundred".