320042203021 has 8 divisors (see below), whose sum is σ = 325514345760. Its totient is φ = 314571650352.

The previous prime is 320042202971. The next prime is 320042203037. The reversal of 320042203021 is 120302240023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320042203021 - 2¹⁷ = 320042071949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320042203021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320042203081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12051 + ... + 800143.

It is an arithmetic number, because the mean of its divisors is an integer number (40689293220).

Almost surely, 2^320042203021 is an apocalyptic number.

It is an amenable number.

320042203021 is a deficient number, since it is larger than the sum of its proper divisors (5472142739).

320042203021 is an equidigital number, since it uses as much as digits as its factorization.

320042203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795035.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 320042203021 its reverse (120302240023), we get a palindrome (440344443044).

It can be divided in two parts, 32004 and 2203021, that added together give a square (2235025 = 1495²).

The spelling of 320042203021 in words is "three hundred twenty billion, forty-two million, two hundred three thousand, twenty-one".