421331444203 has 8 divisors (see below), whose sum is σ = 427301869536. Its totient is φ = 415362024000.

The previous prime is 421331444153. The next prime is 421331444227. The reversal of 421331444203 is 302444133124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421331444203 - 2³³ = 412741509611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421331448203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613975 + ... + 1104367.

It is an arithmetic number, because the mean of its divisors is an integer number (53412733692).

Almost surely, 2^421331444203 is an apocalyptic number.

421331444203 is a deficient number, since it is larger than the sum of its proper divisors (5970425333).

421331444203 is a wasteful number, since it uses less digits than its factorization.

421331444203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502565.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 421331444203 its reverse (302444133124), we get a palindrome (723775577327).

The spelling of 421331444203 in words is "four hundred twenty-one billion, three hundred thirty-one million, four hundred forty-four thousand, two hundred three".