200120101273 has 2 divisors, whose sum is σ = 200120101274. Its totient is φ = 200120101272.

The previous prime is 200120101121. The next prime is 200120101277. The reversal of 200120101273 is 372101021002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198357109129 + 1762992144 = 445373^2 + 41988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200120101273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200120101273.

It is not a weakly prime, because it can be changed into another prime (200120101277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060050636 + 100060050637.

It is an arithmetic number, because the mean of its divisors is an integer number (100060050637).

Almost surely, 2^200120101273 is an apocalyptic number.

It is an amenable number.

200120101273 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120101273 is an equidigital number, since it uses as much as digits as its factorization.

200120101273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 200120101273 its reverse (372101021002), we get a palindrome (572221122275).

The spelling of 200120101273 in words is "two hundred billion, one hundred twenty million, one hundred one thousand, two hundred seventy-three".