201020202100973 has 2 divisors, whose sum is σ = 201020202100974. Its totient is φ = 201020202100972.

The previous prime is 201020202100909. The next prime is 201020202101011. The reversal of 201020202100973 is 379001202020102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143313891218884 + 57706310882089 = 11971378^2 + 7596467^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020202100973 - 2⁶ = 201020202100909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020202100873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510101050486 + 100510101050487.

It is an arithmetic number, because the mean of its divisors is an integer number (100510101050487).

Almost surely, 2^{201020202100973} is an apocalyptic number.

It is an amenable number.

201020202100973 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020202100973 is an equidigital number, since it uses as much as digits as its factorization.

201020202100973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 201020202100973 in words is "two hundred one trillion, twenty billion, two hundred two million, one hundred thousand, nine hundred seventy-three".