123804072118 has 12 divisors (see below), whose sum is σ = 189741376692. Its totient is φ = 60584969300.

The previous prime is 123804072113. The next prime is 123804072169. The reversal of 123804072118 is 811270408321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123804072113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14006908 + ... + 14015743.

It is an arithmetic number, because the mean of its divisors is an integer number (15811781391).

Almost surely, 2^123804072118 is an apocalyptic number.

123804072118 is a deficient number, since it is larger than the sum of its proper divisors (65937304574).

123804072118 is an equidigital number, since it uses as much as digits as its factorization.

123804072118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28022747 (or 28022700 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 123804072118 in words is "one hundred twenty-three billion, eight hundred four million, seventy-two thousand, one hundred eighteen".