20030021300 has 18 divisors (see below), whose sum is σ = 43465146438. Its totient is φ = 8012008480.

The previous prime is 20030021287. The next prime is 20030021311. The reversal of 20030021300 is 312003002.

It can be written as a sum of positive squares in 3 ways, for example, as 3965472784 + 16064548516 = 62972^2 + 126746^2 .

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, 100150007 + ... + 100150206.

Almost surely, 2^20030021300 is an apocalyptic number.

20030021300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030021300 is an abundant number, since it is smaller than the sum of its proper divisors (23435125138).

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

20030021300 is a wasteful number, since it uses less digits than its factorization.

20030021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200300227 (or 200300220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20030021300 its reverse (312003002), we get a palindrome (20342024302).

The spelling of 20030021300 in words is "twenty billion, thirty million, twenty-one thousand, three hundred".