322145003321 has 4 divisors (see below), whose sum is σ = 322220752932. Its totient is φ = 322069253712.

The previous prime is 322145003311. The next prime is 322145003357. The reversal of 322145003321 is 123300541223.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93780487696 + 228364515625 = 306236^2 + 477875^2 .

It is a cyclic number.

It is not a de Polignac number, because 322145003321 - 2¹⁴ = 322144986937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (322145003311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37868426 + ... + 37876931.

It is an arithmetic number, because the mean of its divisors is an integer number (80555188233).

Almost surely, 2^322145003321 is an apocalyptic number.

It is an amenable number.

322145003321 is a deficient number, since it is larger than the sum of its proper divisors (75749611).

322145003321 is an equidigital number, since it uses as much as digits as its factorization.

322145003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75749610.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 322145003321 its reverse (123300541223), we get a palindrome (445445544544).

The spelling of 322145003321 in words is "three hundred twenty-two billion, one hundred forty-five million, three thousand, three hundred twenty-one".