201103321 has 2 divisors, whose sum is σ = 201103322. Its totient is φ = 201103320.

The previous prime is 201103297. The next prime is 201103333. The reversal of 201103321 is 123301102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188677696 + 12425625 = 13736^2 + 3525^2 .

It is a cyclic number.

It is not a de Polignac number, because 201103321 - 2¹³ = 201095129 is a prime.

It is not a weakly prime, because it can be changed into another prime (201103351) 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 as a sum of consecutive naturals, namely, 100551660 + 100551661.

It is an arithmetic number, because the mean of its divisors is an integer number (100551661).

Almost surely, 2^201103321 is an apocalyptic number.

It is an amenable number.

201103321 is a deficient number, since it is larger than the sum of its proper divisors (1).

201103321 is an equidigital number, since it uses as much as digits as its factorization.

201103321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 201103321 is about 14181.0902613304. The cubic root of 201103321 is about 585.8769529297.

Adding to 201103321 its reverse (123301102), we get a palindrome (324404423).

The spelling of 201103321 in words is "two hundred one million, one hundred three thousand, three hundred twenty-one".