123517423 has 8 divisors (see below), whose sum is σ = 134213120. Its totient is φ = 113241240.

The previous prime is 123517421. The next prime is 123517441. The reversal of 123517423 is 324715321.

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

It is a cyclic number.

It is not a de Polignac number, because 123517423 - 2¹ = 123517421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123517391 and 123517400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123517421) 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 7 ways as a sum of consecutive naturals, for example, 104265 + ... + 105442.

It is an arithmetic number, because the mean of its divisors is an integer number (16776640).

Almost surely, 2^123517423 is an apocalyptic number.

123517423 is a deficient number, since it is larger than the sum of its proper divisors (10695697).

123517423 is a wasteful number, since it uses less digits than its factorization.

123517423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209757.

The product of its digits is 5040, while the sum is 28.

The square root of 123517423 is about 11113.8392556308. The cubic root of 123517423 is about 498.0153635255.

The spelling of 123517423 in words is "one hundred twenty-three million, five hundred seventeen thousand, four hundred twenty-three".