201241321 has 8 divisors (see below), whose sum is σ = 202555080. Its totient is φ = 199932288.

The previous prime is 201241303. The next prime is 201241343. The reversal of 201241321 is 123142102.

It can be written as a sum of positive squares in 4 ways, for example, as 168921 + 201072400 = 411^2 + 14180^2 .

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 201241321 - 2²³ = 192852713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201241295 and 201241304.

It is not an unprimeable number, because it can be changed into a prime (201241301) 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, 122115 + ... + 123751.

It is an arithmetic number, because the mean of its divisors is an integer number (25319385).

Almost surely, 2^201241321 is an apocalyptic number.

It is an amenable number.

201241321 is a deficient number, since it is larger than the sum of its proper divisors (1313759).

201241321 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (201241320) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (2363).

201241321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 201241321 is about 14185.9550612569. The cubic root of 201241321 is about 586.0109346933.

Adding to 201241321 its reverse (123142102), we get a palindrome (324383423).

The spelling of 201241321 in words is "two hundred one million, two hundred forty-one thousand, three hundred twenty-one".