200320749173 has 2 divisors, whose sum is σ = 200320749174. Its totient is φ = 200320749172.

The previous prime is 200320749157. The next prime is 200320749217. The reversal of 200320749173 is 371947023002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193373026564 + 6947722609 = 439742^2 + 83353^2 .

It is a cyclic number.

It is not a de Polignac number, because 200320749173 - 2⁴ = 200320749157 is a prime.

It is a super-3 number, since 3×200320749173³ (a number of 35 digits) contains 333 as substring.

It is a Sophie Germain 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 (200320745173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100160374586 + 100160374587.

It is an arithmetic number, because the mean of its divisors is an integer number (100160374587).

Almost surely, 2^200320749173 is an apocalyptic number.

It is an amenable number.

200320749173 is a deficient number, since it is larger than the sum of its proper divisors (1).

200320749173 is an equidigital number, since it uses as much as digits as its factorization.

200320749173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 200320749173 in words is "two hundred billion, three hundred twenty million, seven hundred forty-nine thousand, one hundred seventy-three".