20003023 has 2 divisors, whose sum is σ = 20003024. Its totient is φ = 20003022.

The previous prime is 20003003. The next prime is 20003047. The reversal of 20003023 is 32030002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20003023 - 2¹³ = 19994831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003003) 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, 10001511 + 10001512.

It is an arithmetic number, because the mean of its divisors is an integer number (10001512).

Almost surely, 2^20003023 is an apocalyptic number.

20003023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003023 is an equidigital number, since it uses as much as digits as its factorization.

20003023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 20003023 is about 4472.4739239039. The cubic root of 20003023 is about 271.4554371113.

Adding to 20003023 its reverse (32030002), we get a palindrome (52033025).

The spelling of 20003023 in words is "twenty million, three thousand, twenty-three".