108820123 has 2 divisors, whose sum is σ = 108820124. Its totient is φ = 108820122.

The previous prime is 108820121. The next prime is 108820171. The reversal of 108820123 is 321028801.

It is a weak prime.

It is an emirp because it is prime and its reverse (321028801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108820123 - 2¹ = 108820121 is a prime.

Together with 108820121, it forms a pair of twin primes.

It is equal to p_6239500 and since 108820123 and 6239500 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (108820121) 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 as a sum of consecutive naturals, namely, 54410061 + 54410062.

It is an arithmetic number, because the mean of its divisors is an integer number (54410062).

Almost surely, 2^108820123 is an apocalyptic number.

108820123 is a deficient number, since it is larger than the sum of its proper divisors (1).

108820123 is an equidigital number, since it uses as much as digits as its factorization.

108820123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 108820123 is about 10431.6884060060. The cubic root of 108820123 is about 477.4227068957.

Adding to 108820123 its reverse (321028801), we get a palindrome (429848924).

The spelling of 108820123 in words is "one hundred eight million, eight hundred twenty thousand, one hundred twenty-three".