204121373 has 2 divisors, whose sum is σ = 204121374. Its totient is φ = 204121372.

The previous prime is 204121367. The next prime is 204121417. The reversal of 204121373 is 373121402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180042724 + 24078649 = 13418^2 + 4907^2 .

It is a cyclic number.

It is not a de Polignac number, because 204121373 - 2¹⁶ = 204055837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204121273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102060686 + 102060687.

It is an arithmetic number, because the mean of its divisors is an integer number (102060687).

Almost surely, 2^204121373 is an apocalyptic number.

It is an amenable number.

204121373 is a deficient number, since it is larger than the sum of its proper divisors (1).

204121373 is an equidigital number, since it uses as much as digits as its factorization.

204121373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 204121373 is about 14287.1051301515. The cubic root of 204121373 is about 588.7932559880.

Adding to 204121373 its reverse (373121402), we get a palindrome (577242775).

The spelling of 204121373 in words is "two hundred four million, one hundred twenty-one thousand, three hundred seventy-three".