118813423 has 4 divisors (see below), whose sum is σ = 123979248. Its totient is φ = 113647600.

The previous prime is 118813417. The next prime is 118813427. The reversal of 118813423 is 324318811.

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

It is not a de Polignac number, because 118813423 - 2¹⁷ = 118682351 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118813427) 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, 2582878 + ... + 2582923.

It is an arithmetic number, because the mean of its divisors is an integer number (30994812).

Almost surely, 2^118813423 is an apocalyptic number.

118813423 is a deficient number, since it is larger than the sum of its proper divisors (5165825).

118813423 is an equidigital number, since it uses as much as digits as its factorization.

118813423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165824.

The product of its digits is 4608, while the sum is 31.

The square root of 118813423 is about 10900.1570172177. The cubic root of 118813423 is about 491.6112763928.

The spelling of 118813423 in words is "one hundred eighteen million, eight hundred thirteen thousand, four hundred twenty-three".