321022340120401 has 4 divisors (see below), whose sum is σ = 321025579956900. Its totient is φ = 321019100283904.

The previous prime is 321022340120371. The next prime is 321022340120441. The reversal of 321022340120401 is 104021043220123.

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 301604040296001 + 19418299824400 = 17366751^2 + 4406620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321022340120401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321022340120441) 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, 1619769616 + ... + 1619967793.

It is an arithmetic number, because the mean of its divisors is an integer number (80256394989225).

Almost surely, 2^{321022340120401} is an apocalyptic number.

It is an amenable number.

321022340120401 is a deficient number, since it is larger than the sum of its proper divisors (3239836499).

321022340120401 is an equidigital number, since it uses as much as digits as its factorization.

321022340120401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239836498.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 321022340120401 its reverse (104021043220123), we get a palindrome (425043383340524).

The spelling of 321022340120401 in words is "three hundred twenty-one trillion, twenty-two billion, three hundred forty million, one hundred twenty thousand, four hundred one".