320204331420 has 24 divisors (see below), whose sum is σ = 896572128144. Its totient is φ = 85387821696.

The previous prime is 320204331409. The next prime is 320204331439. The reversal of 320204331420 is 24133402023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2668369369 + ... + 2668369488.

It is an arithmetic number, because the mean of its divisors is an integer number (37357172006).

Almost surely, 2^320204331420 is an apocalyptic number.

320204331420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320204331420 is an abundant number, since it is smaller than the sum of its proper divisors (576367796724).

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

320204331420 is a wasteful number, since it uses less digits than its factorization.

320204331420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336738869 (or 5336738867 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 320204331420 its reverse (24133402023), we get a palindrome (344337733443).

The spelling of 320204331420 in words is "three hundred twenty billion, two hundred four million, three hundred thirty-one thousand, four hundred twenty".