18680123 has 16 divisors (see below), whose sum is σ = 23769600. Its totient is φ = 14553000.

The previous prime is 18680113. The next prime is 18680141. The reversal of 18680123 is 32108681.

It is not a de Polignac number, because 18680123 - 2⁴ = 18680107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18680113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298 + ... + 6248.

It is an arithmetic number, because the mean of its divisors is an integer number (1485600).

Almost surely, 2^18680123 is an apocalyptic number.

18680123 is a deficient number, since it is larger than the sum of its proper divisors (5089477).

18680123 is an equidigital number, since it uses as much as digits as its factorization.

18680123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983 (or 4969 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 18680123 is about 4322.0507863744. The cubic root of 18680123 is about 265.3342075017.

The spelling of 18680123 in words is "eighteen million, six hundred eighty thousand, one hundred twenty-three".