421423302412 has 48 divisors (see below), whose sum is σ = 876290623488. Its totient is φ = 173574910080.

The previous prime is 421423302401. The next prime is 421423302451. The reversal of 421423302412 is 214203324124.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2662588 + ... + 2816419.

It is an arithmetic number, because the mean of its divisors is an integer number (18256054656).

Almost surely, 2^421423302412 is an apocalyptic number.

It is an amenable number.

421423302412 is an abundant number, since it is smaller than the sum of its proper divisors (454867321076).

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

421423302412 is a wasteful number, since it uses less digits than its factorization.

421423302412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479126 (or 5479124 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 421423302412 its reverse (214203324124), we get a palindrome (635626626536).

The spelling of 421423302412 in words is "four hundred twenty-one billion, four hundred twenty-three million, three hundred two thousand, four hundred twelve".