20024131 has 2 divisors, whose sum is σ = 20024132. Its totient is φ = 20024130.

The previous prime is 20024129. The next prime is 20024143. The reversal of 20024131 is 13142002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20024131 - 2¹ = 20024129 is a prime.

It is a super-2 number, since 2×20024131² = 801931644610322, which contains 22 as substring.

Together with 20024129, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20024161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012065 + 10012066.

It is an arithmetic number, because the mean of its divisors is an integer number (10012066).

Almost surely, 2^20024131 is an apocalyptic number.

20024131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024131 is an equidigital number, since it uses as much as digits as its factorization.

20024131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20024131 is about 4474.8330695122. The cubic root of 20024131 is about 271.5508871353.

Adding to 20024131 its reverse (13142002), we get a palindrome (33166133).

The spelling of 20024131 in words is "twenty million, twenty-four thousand, one hundred thirty-one".