421331014443 has 16 divisors (see below), whose sum is σ = 576700056576. Its totient is φ = 273486589440.

The previous prime is 421331014441. The next prime is 421331014451. The reversal of 421331014443 is 344410133124.

It is not a de Polignac number, because 421331014443 - 2¹ = 421331014441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421331014443.

It is not an unprimeable number, because it can be changed into a prime (421331014441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7714143 + ... + 7768568.

It is an arithmetic number, because the mean of its divisors is an integer number (36043753536).

Almost surely, 2^421331014443 is an apocalyptic number.

421331014443 is a deficient number, since it is larger than the sum of its proper divisors (155369042133).

421331014443 is a wasteful number, since it uses less digits than its factorization.

421331014443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15482954.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 421331014443 its reverse (344410133124), we get a palindrome (765741147567).

The spelling of 421331014443 in words is "four hundred twenty-one billion, three hundred thirty-one million, fourteen thousand, four hundred forty-three".