421211034321 has 16 divisors (see below), whose sum is σ = 700194966528. Its totient is φ = 218810926800.

The previous prime is 421211034311. The next prime is 421211034323. The reversal of 421211034321 is 123430112124.

It is a de Polignac number, because none of the positive numbers 2^k-421211034321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421211034291 and 421211034300.

It is not an unprimeable number, because it can be changed into a prime (421211034323) 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, 911711965 + ... + 911712426.

It is an arithmetic number, because the mean of its divisors is an integer number (43762185408).

Almost surely, 2^421211034321 is an apocalyptic number.

It is an amenable number.

421211034321 is a deficient number, since it is larger than the sum of its proper divisors (278983932207).

421211034321 is a wasteful number, since it uses less digits than its factorization.

421211034321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823424412.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 421211034321 its reverse (123430112124), we get a palindrome (544641146445).

The spelling of 421211034321 in words is "four hundred twenty-one billion, two hundred eleven million, thirty-four thousand, three hundred twenty-one".