124424121 has 4 divisors (see below), whose sum is σ = 165898832. Its totient is φ = 82949412.

The previous prime is 124424099. The next prime is 124424129. The reversal of 124424121 is 121424421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 124424121 - 2¹¹ = 124422073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124424129) 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 in 3 ways as a sum of consecutive naturals, for example, 20737351 + ... + 20737356.

It is an arithmetic number, because the mean of its divisors is an integer number (41474708).

Almost surely, 2^124424121 is an apocalyptic number.

It is an amenable number.

124424121 is a deficient number, since it is larger than the sum of its proper divisors (41474711).

124424121 is an equidigital number, since it uses as much as digits as its factorization.

124424121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41474710.

The product of its digits is 512, while the sum is 21.

The square root of 124424121 is about 11154.5560646760. The cubic root of 124424121 is about 499.2309791536.

Adding to 124424121 its reverse (121424421), we get a palindrome (245848542).

The spelling of 124424121 in words is "one hundred twenty-four million, four hundred twenty-four thousand, one hundred twenty-one".