123708823 has 4 divisors (see below), whose sum is σ = 141381520. Its totient is φ = 106036128.

The previous prime is 123708803. The next prime is 123708833. The reversal of 123708823 is 328807321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123708823 - 2⁹ = 123708311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123708803) 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, 8836338 + ... + 8836351.

It is an arithmetic number, because the mean of its divisors is an integer number (35345380).

Almost surely, 2^123708823 is an apocalyptic number.

123708823 is a deficient number, since it is larger than the sum of its proper divisors (17672697).

123708823 is an equidigital number, since it uses as much as digits as its factorization.

123708823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17672696.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 123708823 is about 11122.4468081443. The cubic root of 123708823 is about 498.2724688128.

The spelling of 123708823 in words is "one hundred twenty-three million, seven hundred eight thousand, eight hundred twenty-three".