421030304271 has 28 divisors (see below), whose sum is σ = 637385503248. Its totient is φ = 277961704704.

The previous prime is 421030304263. The next prime is 421030304273. The reversal of 421030304271 is 172403030124.

It is a happy number.

It is not a de Polignac number, because 421030304271 - 2³ = 421030304263 is a prime.

It is a super-2 number, since 2×421030304271² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421030304273) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2728530 + ... + 2878703.

Almost surely, 2^421030304271 is an apocalyptic number.

421030304271 is a deficient number, since it is larger than the sum of its proper divisors (216355198977).

421030304271 is an equidigital number, since it uses as much as digits as its factorization.

421030304271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607354 (or 5607339 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 421030304271 its reverse (172403030124), we get a palindrome (593433334395).

The spelling of 421030304271 in words is "four hundred twenty-one billion, thirty million, three hundred four thousand, two hundred seventy-one".