320201042420 has 24 divisors (see below), whose sum is σ = 768482502144. Its totient is φ = 109783214496.

The previous prime is 320201042407. The next prime is 320201042431. The reversal of 320201042420 is 24240102023.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 320201042392 and 320201042401.

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, 1143575012 + ... + 1143575291.

It is an arithmetic number, because the mean of its divisors is an integer number (32020104256).

Almost surely, 2^320201042420 is an apocalyptic number.

It is an amenable number.

320201042420 is an abundant number, since it is smaller than the sum of its proper divisors (448281459724).

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

320201042420 is a wasteful number, since it uses less digits than its factorization.

320201042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287150319 (or 2287150317 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 320201042420 its reverse (24240102023), we get a palindrome (344441144443).

The spelling of 320201042420 in words is "three hundred twenty billion, two hundred one million, forty-two thousand, four hundred twenty".