321132021321 has 8 divisors (see below), whose sum is σ = 428192037504. Its totient is φ = 214080009680.

The previous prime is 321132021313. The next prime is 321132021337. The reversal of 321132021321 is 123120231123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321132021321 - 2³ = 321132021313 is a prime.

It is a super-2 number, since 2×321132021321² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321132021341) 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 7 ways as a sum of consecutive naturals, for example, 1906890 + ... + 2068451.

It is an arithmetic number, because the mean of its divisors is an integer number (53524004688).

Almost surely, 2^321132021321 is an apocalyptic number.

It is an amenable number.

321132021321 is a deficient number, since it is larger than the sum of its proper divisors (107060016183).

321132021321 is a wasteful number, since it uses less digits than its factorization.

321132021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002271.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 321132021321 its reverse (123120231123), we get a palindrome (444252252444).

The spelling of 321132021321 in words is "three hundred twenty-one billion, one hundred thirty-two million, twenty-one thousand, three hundred twenty-one".