320312223001 has 16 divisors (see below), whose sum is σ = 333784337040. Its totient is φ = 307010027520.

The previous prime is 320312222977. The next prime is 320312223017. The reversal of 320312223001 is 100322213023.

It can be written as a sum of positive squares in 8 ways, for example, as 25680383001 + 294631840000 = 160251^2 + 542800^2 .

It is a cyclic number.

It is not a de Polignac number, because 320312223001 - 2¹³ = 320312214809 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 320312223001.

It is not an unprimeable number, because it can be changed into a prime (320312223061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2143225 + ... + 2287801.

It is an arithmetic number, because the mean of its divisors is an integer number (20861521065).

Almost surely, 2^320312223001 is an apocalyptic number.

It is an amenable number.

320312223001 is a deficient number, since it is larger than the sum of its proper divisors (13472114039).

320312223001 is a wasteful number, since it uses less digits than its factorization.

320312223001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145164.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 320312223001 its reverse (100322213023), we get a palindrome (420634436024).

The spelling of 320312223001 in words is "three hundred twenty billion, three hundred twelve million, two hundred twenty-three thousand, one".