204020211000427 has 2 divisors, whose sum is σ = 204020211000428. Its totient is φ = 204020211000426.

The previous prime is 204020211000323. The next prime is 204020211000449. The reversal of 204020211000427 is 724000112020402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204020211000427 is a prime.

It is not a weakly prime, because it can be changed into another prime (204020211000467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102010105500213 + 102010105500214.

It is an arithmetic number, because the mean of its divisors is an integer number (102010105500214).

Almost surely, 2^{204020211000427} is an apocalyptic number.

204020211000427 is a deficient number, since it is larger than the sum of its proper divisors (1).

204020211000427 is an equidigital number, since it uses as much as digits as its factorization.

204020211000427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 204020211000427 its reverse (724000112020402), we get a palindrome (928020323020829).

The spelling of 204020211000427 in words is "two hundred four trillion, twenty billion, two hundred eleven million, four hundred twenty-seven", and thus it is an aban number.