427128139211 has 2 divisors, whose sum is σ = 427128139212. Its totient is φ = 427128139210.

The previous prime is 427128139183. The next prime is 427128139267. The reversal of 427128139211 is 112931821724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427128139211 - 2¹⁰ = 427128138187 is a prime.

It is not a weakly prime, because it can be changed into another prime (427128139811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213564069605 + 213564069606.

It is an arithmetic number, because the mean of its divisors is an integer number (213564069606).

Almost surely, 2^427128139211 is an apocalyptic number.

427128139211 is a deficient number, since it is larger than the sum of its proper divisors (1).

427128139211 is an equidigital number, since it uses as much as digits as its factorization.

427128139211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 41.

The spelling of 427128139211 in words is "four hundred twenty-seven billion, one hundred twenty-eight million, one hundred thirty-nine thousand, two hundred eleven".