12100020073 has 2 divisors, whose sum is σ = 12100020074. Its totient is φ = 12100020072.

The previous prime is 12100020071. The next prime is 12100020109. The reversal of 12100020073 is 37002000121.

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., 6917747929 + 5182272144 = 83173^2 + 71988^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100020073 - 2¹ = 12100020071 is a prime.

Together with 12100020071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12100020071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050010036 + 6050010037.

It is an arithmetic number, because the mean of its divisors is an integer number (6050010037).

Almost surely, 2^12100020073 is an apocalyptic number.

It is an amenable number.

12100020073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100020073 is an equidigital number, since it uses as much as digits as its factorization.

12100020073 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.

Adding to 12100020073 its reverse (37002000121), we get a palindrome (49102020194).

The spelling of 12100020073 in words is "twelve billion, one hundred million, twenty thousand, seventy-three".