124121 has 2 divisors, whose sum is σ = 124122. Its totient is φ = 124120.

The previous prime is 124097. The next prime is 124123. The reversal of 124121 is 121421.

124121 is nontrivially palindromic in base 12.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105625 + 18496 = 325^2 + 136^2 .

It is an emirp because it is prime and its reverse (121421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124121 is a prime.

It is a Sophie Germain prime.

Together with 124123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (124123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62060 + 62061.

It is an arithmetic number, because the mean of its divisors is an integer number (62061).

2¹²⁴¹²¹ is an apocalyptic number.

It is an amenable number.

124121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124121 is an equidigital number, since it uses as much as digits as its factorization.

124121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16, while the sum is 11.

The square root of 124121 is about 352.3081037955. The cubic root of 124121 is about 49.8825242049.

Adding to 124121 its reverse (121421), we get a palindrome (245542).

The spelling of 124121 in words is "one hundred twenty-four thousand, one hundred twenty-one", and thus it is an iban number.