20006023 has 2 divisors, whose sum is σ = 20006024. Its totient is φ = 20006022.

The previous prime is 20006003. The next prime is 20006047. The reversal of 20006023 is 32060002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20006023 - 2⁹ = 20005511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20005994 and 20006012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20006003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10003011 + 10003012.

It is an arithmetic number, because the mean of its divisors is an integer number (10003012).

Almost surely, 2^20006023 is an apocalyptic number.

20006023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20006023 is an equidigital number, since it uses as much as digits as its factorization.

20006023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20006023 is about 4472.8092961806. The cubic root of 20006023 is about 271.4690071535.

Adding to 20006023 its reverse (32060002), we get a palindrome (52066025).

The spelling of 20006023 in words is "twenty million, six thousand, twenty-three".