20354023 has 2 divisors, whose sum is σ = 20354024. Its totient is φ = 20354022.

The previous prime is 20353967. The next prime is 20354041. The reversal of 20354023 is 32045302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20354023 - 2⁹ = 20353511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20354063) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10177011 + 10177012.

It is an arithmetic number, because the mean of its divisors is an integer number (10177012).

Almost surely, 2^20354023 is an apocalyptic number.

20354023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20354023 is an equidigital number, since it uses as much as digits as its factorization.

20354023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20354023 is about 4511.5433057879. The cubic root of 20354023 is about 273.0340138399.

Adding to 20354023 its reverse (32045302), we get a palindrome (52399325).

The spelling of 20354023 in words is "twenty million, three hundred fifty-four thousand, twenty-three".