124511117 has 2 divisors, whose sum is σ = 124511118. Its totient is φ = 124511116.

The previous prime is 124511099. The next prime is 124511119. The reversal of 124511117 is 711115421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98029801 + 26481316 = 9901^2 + 5146^2 .

It is a cyclic number.

It is not a de Polignac number, because 124511117 - 2⁸ = 124510861 is a prime.

Together with 124511119, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 124511092 and 124511101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124511119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62255558 + 62255559.

It is an arithmetic number, because the mean of its divisors is an integer number (62255559).

Almost surely, 2^124511117 is an apocalyptic number.

It is an amenable number.

124511117 is a deficient number, since it is larger than the sum of its proper divisors (1).

124511117 is an equidigital number, since it uses as much as digits as its factorization.

124511117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 280, while the sum is 23.

The square root of 124511117 is about 11158.4549557723. The cubic root of 124511117 is about 499.3473043475.

Adding to 124511117 its reverse (711115421), we get a palindrome (835626538).

The spelling of 124511117 in words is "one hundred twenty-four million, five hundred eleven thousand, one hundred seventeen".