21235503300 has 72 divisors (see below), whose sum is σ = 67026980832. Its totient is φ = 5148000000.

The previous prime is 21235503299. The next prime is 21235503307. The reversal of 21235503300 is 330553212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21235503307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3214201 + ... + 3220800.

Almost surely, 2^21235503300 is an apocalyptic number.

21235503300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21235503300 is an abundant number, since it is smaller than the sum of its proper divisors (45791477532).

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

21235503300 is a wasteful number, since it uses less digits than its factorization.

21235503300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435029 (or 6435022 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The spelling of 21235503300 in words is "twenty-one billion, two hundred thirty-five million, five hundred three thousand, three hundred".