20128883 has 2 divisors, whose sum is σ = 20128884. Its totient is φ = 20128882.

The previous prime is 20128879. The next prime is 20128897. The reversal of 20128883 is 38882102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20128883 - 2² = 20128879 is a prime.

It is not a weakly prime, because it can be changed into another prime (20128483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10064441 + 10064442.

It is an arithmetic number, because the mean of its divisors is an integer number (10064442).

Almost surely, 2^20128883 is an apocalyptic number.

20128883 is a deficient number, since it is larger than the sum of its proper divisors (1).

20128883 is an equidigital number, since it uses as much as digits as its factorization.

20128883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 20128883 is about 4486.5223726178. The cubic root of 20128883 is about 272.0235841358.

The spelling of 20128883 in words is "twenty million, one hundred twenty-eight thousand, eight hundred eighty-three".