231323120203321 has 8 divisors (see below), whose sum is σ = 238791128889600. Its totient is φ = 223855484801520.

The previous prime is 231323120203223. The next prime is 231323120203333. The reversal of 231323120203321 is 123302021323132.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231323120203321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231323120203321.

It is not an unprimeable number, because it can be changed into a prime (231323120203421) 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 7 ways as a sum of consecutive naturals, for example, 92061451 + ... + 94540768.

It is an arithmetic number, because the mean of its divisors is an integer number (29848891111200).

Almost surely, 2^{231323120203321} is an apocalyptic number.

It is an amenable number.

231323120203321 is a deficient number, since it is larger than the sum of its proper divisors (7468008686279).

231323120203321 is a wasteful number, since it uses less digits than its factorization.

231323120203321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186642239.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 231323120203321 its reverse (123302021323132), we get a palindrome (354625141526453).

The spelling of 231323120203321 in words is "two hundred thirty-one trillion, three hundred twenty-three billion, one hundred twenty million, two hundred three thousand, three hundred twenty-one".