231332001321 has 8 divisors (see below), whose sum is σ = 311622490144. Its totient is φ = 152631423360.

The previous prime is 231332001319. The next prime is 231332001349. The reversal of 231332001321 is 123100233132.

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

It is not a de Polignac number, because 231332001321 - 2¹ = 231332001319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231332001371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397477375 + ... + 397477956.

It is an arithmetic number, because the mean of its divisors is an integer number (38952811268).

Almost surely, 2^231332001321 is an apocalyptic number.

It is an amenable number.

231332001321 is a deficient number, since it is larger than the sum of its proper divisors (80290488823).

231332001321 is an equidigital number, since it uses as much as digits as its factorization.

231332001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794955431.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231332001321 its reverse (123100233132), we get a palindrome (354432234453).

The spelling of 231332001321 in words is "two hundred thirty-one billion, three hundred thirty-two million, one thousand, three hundred twenty-one".