421010203130020 has 96 divisors (see below), whose sum is σ = 1045275484780800. Its totient is φ = 139367725023744.

The previous prime is 421010203130009. The next prime is 421010203130071. The reversal of 421010203130020 is 20031302010124.

It is a happy number.

It is a super-2 number, since 2×421010203130020² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421010203130020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577995211 + ... + 578723149.

It is an arithmetic number, because the mean of its divisors is an integer number (10888286299800).

Almost surely, 2^{421010203130020} is an apocalyptic number.

It is an amenable number.

421010203130020 is an abundant number, since it is smaller than the sum of its proper divisors (624265281650780).

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

421010203130020 is a wasteful number, since it uses less digits than its factorization.

421010203130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870437 (or 870435 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 421010203130020 its reverse (20031302010124), we get a palindrome (441041505140144).

The spelling of 421010203130020 in words is "four hundred twenty-one trillion, ten billion, two hundred three million, one hundred thirty thousand, twenty".