21003230200 has 24 divisors (see below), whose sum is σ = 48832510680. Its totient is φ = 8401292000.

The previous prime is 21003230141. The next prime is 21003230207. The reversal of 21003230200 is 203230012.

It is a happy number.

It is a super-2 number, since 2×21003230200² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003230207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52507876 + ... + 52508275.

It is an arithmetic number, because the mean of its divisors is an integer number (2034687945).

Almost surely, 2^21003230200 is an apocalyptic number.

21003230200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21003230200 is an abundant number, since it is smaller than the sum of its proper divisors (27829280480).

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

21003230200 is a wasteful number, since it uses less digits than its factorization.

21003230200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105016167 (or 105016158 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 21003230200 its reverse (203230012), we get a palindrome (21206460212).

The spelling of 21003230200 in words is "twenty-one billion, three million, two hundred thirty thousand, two hundred".