421321421324 has 48 divisors (see below), whose sum is σ = 745449804288. Its totient is φ = 208350612288.

The previous prime is 421321421309. The next prime is 421321421329. The reversal of 421321421324 is 423124123124.

It is not an unprimeable number, because it can be changed into a prime (421321421329) 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, 148194647 + ... + 148197489.

It is an arithmetic number, because the mean of its divisors is an integer number (15530204256).

Almost surely, 2^421321421324 is an apocalyptic number.

It is an amenable number.

421321421324 is a deficient number, since it is larger than the sum of its proper divisors (324128382964).

421321421324 is a wasteful number, since it uses less digits than its factorization.

421321421324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014 (or 4012 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 421321421324 its reverse (423124123124), we get a palindrome (844445544448).

The spelling of 421321421324 in words is "four hundred twenty-one billion, three hundred twenty-one million, four hundred twenty-one thousand, three hundred twenty-four".