1201200073 has 2 divisors, whose sum is σ = 1201200074. Its totient is φ = 1201200072.

The previous prime is 1201200067. The next prime is 1201200107. The reversal of 1201200073 is 3700021021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1200830409 + 369664 = 34653^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201200073 - 2²⁵ = 1167645641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201200043) 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, 600600036 + 600600037.

It is an arithmetic number, because the mean of its divisors is an integer number (600600037).

Almost surely, 2^1201200073 is an apocalyptic number.

It is an amenable number.

1201200073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201200073 is an equidigital number, since it uses as much as digits as its factorization.

1201200073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1201200073 is about 34658.3333846277. Note that the first 4 decimals coincide. The cubic root of 1201200073 is about 1063.0126922321.

Adding to 1201200073 its reverse (3700021021), we get a palindrome (4901221094).

The spelling of 1201200073 in words is "one billion, two hundred one million, two hundred thousand, seventy-three".