321313232032221 has 16 divisors (see below), whose sum is σ = 503315831995200. Its totient is φ = 179755654283520.

The previous prime is 321313232032201. The next prime is 321313232032231. The reversal of 321313232032221 is 122230232313123.

It is not a de Polignac number, because 321313232032221 - 2⁵ = 321313232032189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321313232032201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374490945996 + ... + 374490946853.

It is an arithmetic number, because the mean of its divisors is an integer number (31457239499700).

Almost surely, 2^{321313232032221} is an apocalyptic number.

It is an amenable number.

321313232032221 is a deficient number, since it is larger than the sum of its proper divisors (182002599962979).

321313232032221 is a wasteful number, since it uses less digits than its factorization.

321313232032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748981892876.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 321313232032221 its reverse (122230232313123), we get a palindrome (443543464345344).

The spelling of 321313232032221 in words is "three hundred twenty-one trillion, three hundred thirteen billion, two hundred thirty-two million, thirty-two thousand, two hundred twenty-one".