124044021 has 8 divisors (see below), whose sum is σ = 183768960. Its totient is φ = 82695996.

The previous prime is 124044013. The next prime is 124044043. The reversal of 124044021 is 120440421.

It is not a de Polignac number, because 124044021 - 2³ = 124044013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124043985 and 124044003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124044061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2297085 + ... + 2297138.

It is an arithmetic number, because the mean of its divisors is an integer number (22971120).

Almost surely, 2^124044021 is an apocalyptic number.

It is an amenable number.

124044021 is a deficient number, since it is larger than the sum of its proper divisors (59724939).

124044021 is an equidigital number, since it uses as much as digits as its factorization.

124044021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594232 (or 4594226 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 124044021 is about 11137.5051515140. The cubic root of 124044021 is about 498.7220980490.

Adding to 124044021 its reverse (120440421), we get a palindrome (244484442).

The spelling of 124044021 in words is "one hundred twenty-four million, forty-four thousand, twenty-one".