123823018 has 8 divisors (see below), whose sum is σ = 202619520. Its totient is φ = 56283180.

The previous prime is 123823013. The next prime is 123823031. The reversal of 123823018 is 810328321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (123823013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2814138 + ... + 2814181.

It is an arithmetic number, because the mean of its divisors is an integer number (25327440).

Almost surely, 2^123823018 is an apocalyptic number.

123823018 is a deficient number, since it is larger than the sum of its proper divisors (78796502).

123823018 is a wasteful number, since it uses less digits than its factorization.

123823018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628332.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 123823018 is about 11127.5791617045. The cubic root of 123823018 is about 498.4257392750.

It can be divided in two parts, 12382 and 3018, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 123823018 in words is "one hundred twenty-three million, eight hundred twenty-three thousand, eighteen".