421204334100 has 72 divisors (see below), whose sum is σ = 1329474054048. Its totient is φ = 102110140800.

The previous prime is 421204334093. The next prime is 421204334113. The reversal of 421204334100 is 1433402124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63815539 + ... + 63822138.

Almost surely, 2^421204334100 is an apocalyptic number.

It is an amenable number.

421204334100 is an abundant number, since it is smaller than the sum of its proper divisors (908269719948).

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

421204334100 is a wasteful number, since it uses less digits than its factorization.

421204334100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127637705 (or 127637698 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 421204334100 its reverse (1433402124), we get a palindrome (422637736224).

The spelling of 421204334100 in words is "four hundred twenty-one billion, two hundred four million, three hundred thirty-four thousand, one hundred".