20128063 has 2 divisors, whose sum is σ = 20128064. Its totient is φ = 20128062.

The previous prime is 20128061. The next prime is 20128067. The reversal of 20128063 is 36082102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20128063 - 2¹ = 20128061 is a prime.

Together with 20128061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20128061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10064031 + 10064032.

It is an arithmetic number, because the mean of its divisors is an integer number (10064032).

Almost surely, 2^20128063 is an apocalyptic number.

20128063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20128063 is an equidigital number, since it uses as much as digits as its factorization.

20128063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20128063 is about 4486.4309868759. The cubic root of 20128063 is about 272.0198902338.

The spelling of 20128063 in words is "twenty million, one hundred twenty-eight thousand, sixty-three".