20124113 has 2 divisors, whose sum is σ = 20124114. Its totient is φ = 20124112.

The previous prime is 20124109. The next prime is 20124127. The reversal of 20124113 is 31142102.

It is an a-pointer prime, because the next prime (20124127) can be obtained adding 20124113 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13191424 + 6932689 = 3632^2 + 2633^2 .

It is a cyclic number.

It is not a de Polignac number, because 20124113 - 2² = 20124109 is a prime.

It is not a weakly prime, because it can be changed into another prime (20124193) 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, 10062056 + 10062057.

It is an arithmetic number, because the mean of its divisors is an integer number (10062057).

Almost surely, 2^20124113 is an apocalyptic number.

It is an amenable number.

20124113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124113 is an equidigital number, since it uses as much as digits as its factorization.

20124113 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 14.

The square root of 20124113 is about 4485.9907489873. The cubic root of 20124113 is about 272.0020950314.

Adding to 20124113 its reverse (31142102), we get a palindrome (51266215).

The spelling of 20124113 in words is "twenty million, one hundred twenty-four thousand, one hundred thirteen".