421322400223 has 16 divisors (see below), whose sum is σ = 438187180032. Its totient is φ = 404784856000.

The previous prime is 421322400193. The next prime is 421322400253. The reversal of 421322400223 is 322004223124.

It is an interprime number because it is at equal distance from previous prime (421322400193) and next prime (421322400253).

It is a cyclic number.

It is not a de Polignac number, because 421322400223 - 2²¹ = 421320303071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421322400253) by changing a digit.

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, 2428338 + ... + 2596048.

It is an arithmetic number, because the mean of its divisors is an integer number (27386698752).

Almost surely, 2^421322400223 is an apocalyptic number.

421322400223 is a deficient number, since it is larger than the sum of its proper divisors (16864779809).

421322400223 is a wasteful number, since it uses less digits than its factorization.

421322400223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168686.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 421322400223 its reverse (322004223124), we get a palindrome (743326623347).

The spelling of 421322400223 in words is "four hundred twenty-one billion, three hundred twenty-two million, four hundred thousand, two hundred twenty-three".