421152120320 has 80 divisors (see below), whose sum is σ = 1026332131968. Its totient is φ = 165699133440.

The previous prime is 421152120289. The next prime is 421152120373. The reversal of 421152120320 is 23021251124.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1192304 + ... + 1504623.

Almost surely, 2^421152120320 is an apocalyptic number.

421152120320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421152120320 is an abundant number, since it is smaller than the sum of its proper divisors (605180011648).

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

421152120320 is an equidigital number, since it uses as much as digits as its factorization.

421152120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697011 (or 2696995 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 421152120320 its reverse (23021251124), we get a palindrome (444173371444).

The spelling of 421152120320 in words is "four hundred twenty-one billion, one hundred fifty-two million, one hundred twenty thousand, three hundred twenty".