321132112201 has 4 divisors (see below), whose sum is σ = 321404028804. Its totient is φ = 320860195600.

The previous prime is 321132112159. The next prime is 321132112247. The reversal of 321132112201 is 102211231123.

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 242536550400 + 78595561801 = 492480^2 + 280349^2 .

It is a cyclic number.

It is not a de Polignac number, because 321132112201 - 2¹³ = 321132104009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321132112801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135956530 + ... + 135958891.

It is an arithmetic number, because the mean of its divisors is an integer number (80351007201).

Almost surely, 2^321132112201 is an apocalyptic number.

It is an amenable number.

321132112201 is a deficient number, since it is larger than the sum of its proper divisors (271916603).

321132112201 is a wasteful number, since it uses less digits than its factorization.

321132112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271916602.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 321132112201 its reverse (102211231123), we get a palindrome (423343343324).

The spelling of 321132112201 in words is "three hundred twenty-one billion, one hundred thirty-two million, one hundred twelve thousand, two hundred one".