12100020019973 has 2 divisors, whose sum is σ = 12100020019974. Its totient is φ = 12100020019972.

The previous prime is 12100020019943. The next prime is 12100020020041. The reversal of 12100020019973 is 37991002000121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10272935240164 + 1827084779809 = 3205142^2 + 1351697^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100020019973 - 2¹⁸ = 12100019757829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100020019943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050010009986 + 6050010009987.

It is an arithmetic number, because the mean of its divisors is an integer number (6050010009987).

Almost surely, 2^{12100020019973} is an apocalyptic number.

It is an amenable number.

12100020019973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100020019973 is an equidigital number, since it uses as much as digits as its factorization.

12100020019973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 12100020019973 in words is "twelve trillion, one hundred billion, twenty million, nineteen thousand, nine hundred seventy-three".