204042142427 has 2 divisors, whose sum is σ = 204042142428. Its totient is φ = 204042142426.

The previous prime is 204042142397. The next prime is 204042142433. The reversal of 204042142427 is 724241240402.

It is a happy number.

204042142427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204042142427 - 2²⁴ = 204025365211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204042142393 and 204042142402.

It is not a weakly prime, because it can be changed into another prime (204042142457) 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, 102021071213 + 102021071214.

It is an arithmetic number, because the mean of its divisors is an integer number (102021071214).

Almost surely, 2^204042142427 is an apocalyptic number.

204042142427 is a deficient number, since it is larger than the sum of its proper divisors (1).

204042142427 is an equidigital number, since it uses as much as digits as its factorization.

204042142427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28672, while the sum is 32.

Adding to 204042142427 its reverse (724241240402), we get a palindrome (928283382829).

The spelling of 204042142427 in words is "two hundred four billion, forty-two million, one hundred forty-two thousand, four hundred twenty-seven".