201231002122321 has 8 divisors (see below), whose sum is σ = 212389995192320. Its totient is φ = 190128797821872.

The previous prime is 201231002122301. The next prime is 201231002122331. The reversal of 201231002122321 is 123221200132102.

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 201231002122321 - 2⁵ = 201231002122289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201231002122292 and 201231002122301.

It is not an unprimeable number, because it can be changed into a prime (201231002122301) 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, 14197185105 + ... + 14197199278.

It is an arithmetic number, because the mean of its divisors is an integer number (26548749399040).

Almost surely, 2^{201231002122321} is an apocalyptic number.

It is an amenable number.

201231002122321 is a deficient number, since it is larger than the sum of its proper divisors (11158993069999).

201231002122321 is a wasteful number, since it uses less digits than its factorization.

201231002122321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28394384775.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 201231002122321 its reverse (123221200132102), we get a palindrome (324452202254423).

The spelling of 201231002122321 in words is "two hundred one trillion, two hundred thirty-one billion, two million, one hundred twenty-two thousand, three hundred twenty-one".