118424123 has 4 divisors (see below), whose sum is σ = 122244288. Its totient is φ = 114603960.

The previous prime is 118424083. The next prime is 118424129. The reversal of 118424123 is 321424811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321424811 = 11821 ⋅27191.

It is a cyclic number.

It is not a de Polignac number, because 118424123 - 2¹⁴ = 118407739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118424092 and 118424101.

It is not an unprimeable number, because it can be changed into a prime (118424129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1910036 + ... + 1910097.

It is an arithmetic number, because the mean of its divisors is an integer number (30561072).

Almost surely, 2^118424123 is an apocalyptic number.

118424123 is a deficient number, since it is larger than the sum of its proper divisors (3820165).

118424123 is an equidigital number, since it uses as much as digits as its factorization.

118424123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820164.

The product of its digits is 1536, while the sum is 26.

The square root of 118424123 is about 10882.2848244291. The cubic root of 118424123 is about 491.0737566577.

Adding to 118424123 its reverse (321424811), we get a palindrome (439848934).

The spelling of 118424123 in words is "one hundred eighteen million, four hundred twenty-four thousand, one hundred twenty-three".