320021222303 has 4 divisors (see below), whose sum is σ = 320023133808. Its totient is φ = 320019310800.

The previous prime is 320021222273. The next prime is 320021222317. The reversal of 320021222303 is 303222120023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320021222303 - 2¹⁴ = 320021205919 is a prime.

It is a super-2 number, since 2×320021222303² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320021252303) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 677651 + ... + 1048452.

It is an arithmetic number, because the mean of its divisors is an integer number (80005783452).

Almost surely, 2^320021222303 is an apocalyptic number.

320021222303 is a deficient number, since it is larger than the sum of its proper divisors (1911505).

320021222303 is a wasteful number, since it uses less digits than its factorization.

320021222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911504.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 320021222303 its reverse (303222120023), we get a palindrome (623243342326).

The spelling of 320021222303 in words is "three hundred twenty billion, twenty-one million, two hundred twenty-two thousand, three hundred three".