123318479 has 4 divisors (see below), whose sum is σ = 128680176. Its totient is φ = 117956784.

The previous prime is 123318467. The next prime is 123318487. The reversal of 123318479 is 974813321.

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 123318479 - 2¹² = 123314383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123318449) 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, 2680814 + ... + 2680859.

It is an arithmetic number, because the mean of its divisors is an integer number (32170044).

Almost surely, 2^123318479 is an apocalyptic number.

123318479 is a deficient number, since it is larger than the sum of its proper divisors (5361697).

123318479 is an equidigital number, since it uses as much as digits as its factorization.

123318479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361696.

The product of its digits is 36288, while the sum is 38.

The square root of 123318479 is about 11104.8853663602. The cubic root of 123318479 is about 497.7478428072.

The spelling of 123318479 in words is "one hundred twenty-three million, three hundred eighteen thousand, four hundred seventy-nine".