20030421300 has 72 divisors (see below), whose sum is σ = 61004949600. Its totient is φ = 5060315520.

The previous prime is 20030421247. The next prime is 20030421311. The reversal of 20030421300 is 312403002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20030421300.

It is a congruent number.

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, 1751355 + ... + 1762754.

Almost surely, 2^20030421300 is an apocalyptic number.

20030421300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030421300 is an abundant number, since it is smaller than the sum of its proper divisors (40974528300).

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

20030421300 is a wasteful number, since it uses less digits than its factorization.

20030421300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514145 (or 3514138 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20030421300 its reverse (312403002), we get a palindrome (20342824302).

It can be divided in two parts, 20030 and 421300, that added together give a triangular number (441330 = T₉₃₉).

The spelling of 20030421300 in words is "twenty billion, thirty million, four hundred twenty-one thousand, three hundred".