200120209489 has 2 divisors, whose sum is σ = 200120209490. Its totient is φ = 200120209488.

The previous prime is 200120209483. The next prime is 200120209517. The reversal of 200120209489 is 984902021002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117056358225 + 83063851264 = 342135^2 + 288208^2 .

It is a cyclic number.

It is not a de Polignac number, because 200120209489 - 2³ = 200120209481 is a prime.

It is a super-2 number, since 2×200120209489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200120209481) 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, 100060104744 + 100060104745.

It is an arithmetic number, because the mean of its divisors is an integer number (100060104745).

Almost surely, 2^200120209489 is an apocalyptic number.

It is an amenable number.

200120209489 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120209489 is an equidigital number, since it uses as much as digits as its factorization.

200120209489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 200120209489 in words is "two hundred billion, one hundred twenty million, two hundred nine thousand, four hundred eighty-nine".