123823668 has 12 divisors (see below), whose sum is σ = 288921920. Its totient is φ = 41274552.

The previous prime is 123823663. The next prime is 123823681. The reversal of 123823668 is 866328321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123823663) 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, 5159308 + ... + 5159331.

Almost surely, 2^123823668 is an apocalyptic number.

It is an amenable number.

123823668 is an abundant number, since it is smaller than the sum of its proper divisors (165098252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123823668 is a wasteful number, since it uses less digits than its factorization.

123823668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10318646 (or 10318644 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 123823668 is about 11127.6083683782. The cubic root of 123823668 is about 498.4266114234.

The spelling of 123823668 in words is "one hundred twenty-three million, eight hundred twenty-three thousand, six hundred sixty-eight".