321132112021 has 8 divisors (see below), whose sum is σ = 367011681344. Its totient is φ = 275253431040.

The previous prime is 321132112019. The next prime is 321132112031. The reversal of 321132112021 is 120211231123.

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

It is not a de Polignac number, because 321132112021 - 2¹ = 321132112019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321132112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321132112031) 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, 1003366 + ... + 1284136.

It is an arithmetic number, because the mean of its divisors is an integer number (45876460168).

Almost surely, 2^321132112021 is an apocalyptic number.

It is an amenable number.

321132112021 is a deficient number, since it is larger than the sum of its proper divisors (45879569323).

321132112021 is a wasteful number, since it uses less digits than its factorization.

321132112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444171.

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

Adding to 321132112021 its reverse (120211231123), we get a palindrome (441343343144).

The spelling of 321132112021 in words is "three hundred twenty-one billion, one hundred thirty-two million, one hundred twelve thousand, twenty-one".