321132020221313 has 4 divisors (see below), whose sum is σ = 367008023110080. Its totient is φ = 275256017332548.

The previous prime is 321132020221307. The next prime is 321132020221349. The reversal of 321132020221313 is 313122020231123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 321132020221313 - 2⁸ = 321132020221057 is a prime.

It is a super-3 number, since 3×321132020221313³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321132020221303) 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, 22938001444373 + ... + 22938001444386.

It is an arithmetic number, because the mean of its divisors is an integer number (91752005777520).

Almost surely, 2^{321132020221313} is an apocalyptic number.

It is an amenable number.

321132020221313 is a deficient number, since it is larger than the sum of its proper divisors (45876002888767).

321132020221313 is an equidigital number, since it uses as much as digits as its factorization.

321132020221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45876002888766.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 321132020221313 its reverse (313122020231123), we get a palindrome (634254040452436).

The spelling of 321132020221313 in words is "three hundred twenty-one trillion, one hundred thirty-two billion, twenty million, two hundred twenty-one thousand, three hundred thirteen".