20024143 has 2 divisors, whose sum is σ = 20024144. Its totient is φ = 20024142.

The previous prime is 20024131. The next prime is 20024153. The reversal of 20024143 is 34142002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20024143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20024153) 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, 10012071 + 10012072.

It is an arithmetic number, because the mean of its divisors is an integer number (10012072).

Almost surely, 2^20024143 is an apocalyptic number.

20024143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024143 is an equidigital number, since it uses as much as digits as its factorization.

20024143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20024143 is about 4474.8344103441. The cubic root of 20024143 is about 271.5509413800.

Adding to 20024143 its reverse (34142002), we get a palindrome (54166145).

The spelling of 20024143 in words is "twenty million, twenty-four thousand, one hundred forty-three".