421211434020 has 48 divisors (see below), whose sum is σ = 1270114480320. Its totient is φ = 103682814336.

The previous prime is 421211433983. The next prime is 421211434031. The reversal of 421211434020 is 20434112124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270006550 + ... + 270008109.

It is an arithmetic number, because the mean of its divisors is an integer number (26460718340).

Almost surely, 2^421211434020 is an apocalyptic number.

It is an amenable number.

421211434020 is an abundant number, since it is smaller than the sum of its proper divisors (848903046300).

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

421211434020 is a wasteful number, since it uses less digits than its factorization.

421211434020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540014684 (or 540014682 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 421211434020 its reverse (20434112124), we get a palindrome (441645546144).

The spelling of 421211434020 in words is "four hundred twenty-one billion, two hundred eleven million, four hundred thirty-four thousand, twenty".