421023044305 has 16 divisors (see below), whose sum is σ = 531858035520. Its totient is φ = 319067477568.

The previous prime is 421023044297. The next prime is 421023044329. The reversal of 421023044305 is 503440320124.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 421023044305 - 2³ = 421023044297 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1180539 + ... + 1495231.

It is an arithmetic number, because the mean of its divisors is an integer number (33241127220).

Almost surely, 2^421023044305 is an apocalyptic number.

It is an amenable number.

421023044305 is a deficient number, since it is larger than the sum of its proper divisors (110834991215).

421023044305 is a wasteful number, since it uses less digits than its factorization.

421023044305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328800.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 421023044305 its reverse (503440320124), we get a palindrome (924463364429).

The spelling of 421023044305 in words is "four hundred twenty-one billion, twenty-three million, forty-four thousand, three hundred five".