204423212401279 has 2 divisors, whose sum is σ = 204423212401280. Its totient is φ = 204423212401278.

The previous prime is 204423212401259. The next prime is 204423212401319. The reversal of 204423212401279 is 972104212324402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204423212401279 - 2⁹ = 204423212400767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204423212401259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102211606200639 + 102211606200640.

It is an arithmetic number, because the mean of its divisors is an integer number (102211606200640).

Almost surely, 2^{204423212401279} is an apocalyptic number.

204423212401279 is a deficient number, since it is larger than the sum of its proper divisors (1).

204423212401279 is an equidigital number, since it uses as much as digits as its factorization.

204423212401279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 204423212401279 in words is "two hundred four trillion, four hundred twenty-three billion, two hundred twelve million, four hundred one thousand, two hundred seventy-nine".