21003312303300 has 72 divisors (see below), whose sum is σ = 61538818902400. Its totient is φ = 5529986017920.

The previous prime is 21003312303287. The next prime is 21003312303353. The reversal of 21003312303300 is 330321330012.

It is a super-2 number, since 2×21003312303300² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443084155 + ... + 443131554.

Almost surely, 2^{21003312303300} is an apocalyptic number.

21003312303300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21003312303300 is an abundant number, since it is smaller than the sum of its proper divisors (40535506599100).

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

21003312303300 is a wasteful number, since it uses less digits than its factorization.

21003312303300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886215805 (or 886215798 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21003312303300 its reverse (330321330012), we get a palindrome (21333633633312).

The spelling of 21003312303300 in words is "twenty-one trillion, three billion, three hundred twelve million, three hundred three thousand, three hundred".