124120109 has 8 divisors (see below), whose sum is σ = 126161280. Its totient is φ = 122092096.

The previous prime is 124120093. The next prime is 124120123. The reversal of 124120109 is 901021421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124120109 - 2⁴ = 124120093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124120169) 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, 16709 + ... + 22965.

It is an arithmetic number, because the mean of its divisors is an integer number (15770160).

Almost surely, 2^124120109 is an apocalyptic number.

It is an amenable number.

124120109 is a deficient number, since it is larger than the sum of its proper divisors (2041171).

124120109 is an equidigital number, since it uses as much as digits as its factorization.

124120109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 124120109 is about 11140.9204736413. The cubic root of 124120109 is about 498.8240484441.

The spelling of 124120109 in words is "one hundred twenty-four million, one hundred twenty thousand, one hundred nine".