12020563 has 2 divisors, whose sum is σ = 12020564. Its totient is φ = 12020562.

The previous prime is 12020557. The next prime is 12020573. The reversal of 12020563 is 36502021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12020563 - 2⁹ = 12020051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12020563.

It is not a weakly prime, because it can be changed into another prime (12020543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010281 + 6010282.

It is an arithmetic number, because the mean of its divisors is an integer number (6010282).

Almost surely, 2^12020563 is an apocalyptic number.

12020563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020563 is an equidigital number, since it uses as much as digits as its factorization.

12020563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12020563 is about 3467.0683581378. The cubic root of 12020563 is about 229.0735447693.

Adding to 12020563 its reverse (36502021), we get a palindrome (48522584).

The spelling of 12020563 in words is "twelve million, twenty thousand, five hundred sixty-three".