124024121 has 4 divisors (see below), whose sum is σ = 133564452. Its totient is φ = 114483792.

The previous prime is 124024093. The next prime is 124024141. The reversal of 124024121 is 121420421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34058896 + 89965225 = 5836^2 + 9485^2 .

It is a cyclic number.

It is not a de Polignac number, because 124024121 - 2¹⁸ = 123761977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 124024121.

It is not an unprimeable number, because it can be changed into a prime (124024141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4770146 + ... + 4770171.

It is an arithmetic number, because the mean of its divisors is an integer number (33391113).

Almost surely, 2^124024121 is an apocalyptic number.

It is an amenable number.

124024121 is a deficient number, since it is larger than the sum of its proper divisors (9540331).

124024121 is an equidigital number, since it uses as much as digits as its factorization.

124024121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9540330.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 124024121 is about 11136.6117378671. The cubic root of 124024121 is about 498.6954271397.

Adding to 124024121 its reverse (121420421), we get a palindrome (245444542).

The spelling of 124024121 in words is "one hundred twenty-four million, twenty-four thousand, one hundred twenty-one".