421031424424 has 64 divisors (see below), whose sum is σ = 853415035200. Its totient is φ = 193579352064.

The previous prime is 421031424377. The next prime is 421031424547. The reversal of 421031424424 is 424424130124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35744424 + ... + 35756200.

It is an arithmetic number, because the mean of its divisors is an integer number (13334609925).

Almost surely, 2^421031424424 is an apocalyptic number.

It is an amenable number.

421031424424 is an abundant number, since it is smaller than the sum of its proper divisors (432383610776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421031424424 is a wasteful number, since it uses less digits than its factorization.

421031424424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13082 (or 13078 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 421031424424 its reverse (424424130124), we get a palindrome (845455554548).

The spelling of 421031424424 in words is "four hundred twenty-one billion, thirty-one million, four hundred twenty-four thousand, four hundred twenty-four".