321313201 has 6 divisors (see below), whose sum is σ = 353179106. Its totient is φ = 292102800.

The previous prime is 321313163. The next prime is 321313207. The reversal of 321313201 is 102313123.

It can be written as a sum of positive squares in only one way, i.e., 309760000 + 11553201 = 17600^2 + 3399^2 .

It is not a de Polignac number, because 321313201 - 2¹¹ = 321311153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321313207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1327620 + ... + 1327861.

Almost surely, 2^321313201 is an apocalyptic number.

It is an amenable number.

321313201 is a deficient number, since it is larger than the sum of its proper divisors (31865905).

321313201 is a wasteful number, since it uses less digits than its factorization.

321313201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655503 (or 2655492 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 321313201 is about 17925.2113237195. The cubic root of 321313201 is about 684.9247442500.

Adding to 321313201 its reverse (102313123), we get a palindrome (423626324).

The spelling of 321313201 in words is "three hundred twenty-one million, three hundred thirteen thousand, two hundred one".