421204143320 has 32 divisors (see below), whose sum is σ = 947915626320. Its totient is φ = 168444981120.

The previous prime is 421204143317. The next prime is 421204143383. The reversal of 421204143320 is 23341402124.

It is a self number, because there is not a number n which added to its sum of digits gives 421204143320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959711 + ... + 1327950.

Almost surely, 2^421204143320 is an apocalyptic number.

421204143320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421204143320 is an abundant number, since it is smaller than the sum of its proper divisors (526711483000).

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

421204143320 is a wasteful number, since it uses less digits than its factorization.

421204143320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292275 (or 2292271 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 421204143320 its reverse (23341402124), we get a palindrome (444545545444).

The spelling of 421204143320 in words is "four hundred twenty-one billion, two hundred four million, one hundred forty-three thousand, three hundred twenty".