421433243020 has 12 divisors (see below), whose sum is σ = 885009810384. Its totient is φ = 168573297200.

The previous prime is 421433242991. The next prime is 421433243071. The reversal of 421433243020 is 20342334124.

It is a self number, because there is not a number n which added to its sum of digits gives 421433243020.

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 3 ways as a sum of consecutive naturals, for example, 10535831056 + ... + 10535831095.

It is an arithmetic number, because the mean of its divisors is an integer number (73750817532).

Almost surely, 2^421433243020 is an apocalyptic number.

It is an amenable number.

421433243020 is an abundant number, since it is smaller than the sum of its proper divisors (463576567364).

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

421433243020 is a wasteful number, since it uses less digits than its factorization.

421433243020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21071662160 (or 21071662158 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 421433243020 its reverse (20342334124), we get a palindrome (441775577144).

The spelling of 421433243020 in words is "four hundred twenty-one billion, four hundred thirty-three million, two hundred forty-three thousand, twenty".