73321301 has 2 divisors, whose sum is σ = 73321302. Its totient is φ = 73321300.

The previous prime is 73321219. The next prime is 73321327. The reversal of 73321301 is 10312337.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54745201 + 18576100 = 7399^2 + 4310^2 .

It is a cyclic number.

It is not a de Polignac number, because 73321301 - 2¹⁰ = 73320277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73321201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36660650 + 36660651.

It is an arithmetic number, because the mean of its divisors is an integer number (36660651).

Almost surely, 2^73321301 is an apocalyptic number.

It is an amenable number.

73321301 is a deficient number, since it is larger than the sum of its proper divisors (1).

73321301 is an equidigital number, since it uses as much as digits as its factorization.

73321301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 73321301 is about 8562.7858200471. The cubic root of 73321301 is about 418.5461847382.

Adding to 73321301 its reverse (10312337), we get a palindrome (83633638).

The spelling of 73321301 in words is "seventy-three million, three hundred twenty-one thousand, three hundred one".