204220342423189 has 2 divisors, whose sum is σ = 204220342423190. Its totient is φ = 204220342423188.

The previous prime is 204220342423079. The next prime is 204220342423193. The reversal of 204220342423189 is 981324243022402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115186341600100 + 89034000823089 = 10732490^2 + 9435783^2 .

It is a cyclic number.

It is not a de Polignac number, because 204220342423189 - 2³⁷ = 204082903469717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204220342423199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102110171211594 + 102110171211595.

It is an arithmetic number, because the mean of its divisors is an integer number (102110171211595).

Almost surely, 2^{204220342423189} is an apocalyptic number.

It is an amenable number.

204220342423189 is a deficient number, since it is larger than the sum of its proper divisors (1).

204220342423189 is an equidigital number, since it uses as much as digits as its factorization.

204220342423189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 204220342423189 in words is "two hundred four trillion, two hundred twenty billion, three hundred forty-two million, four hundred twenty-three thousand, one hundred eighty-nine".