20124127 has 2 divisors, whose sum is σ = 20124128. Its totient is φ = 20124126.

The previous prime is 20124113. The next prime is 20124179. The reversal of 20124127 is 72142102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20124127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20124197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062063 + 10062064.

It is an arithmetic number, because the mean of its divisors is an integer number (10062064).

Almost surely, 2^20124127 is an apocalyptic number.

20124127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124127 is an equidigital number, since it uses as much as digits as its factorization.

20124127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20124127 is about 4485.9923094005. The cubic root of 20124127 is about 272.0021581072.

Adding to 20124127 its reverse (72142102), we get a palindrome (92266229).

The spelling of 20124127 in words is "twenty million, one hundred twenty-four thousand, one hundred twenty-seven".