123315324 has 48 divisors (see below), whose sum is σ = 317162496. Its totient is φ = 36979200.

The previous prime is 123315319. The next prime is 123315329. The reversal of 123315324 is 423513321.

It is an interprime number because it is at equal distance from previous prime (123315319) and next prime (123315329).

It is a junction number, because it is equal to n+sod(n) for n = 123315294 and 123315303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123315329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7989 + ... + 17619.

It is an arithmetic number, because the mean of its divisors is an integer number (6607552).

Almost surely, 2^123315324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123315324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158581248).

123315324 is an abundant number, since it is smaller than the sum of its proper divisors (193847172).

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

123315324 is a wasteful number, since it uses less digits than its factorization.

123315324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9746 (or 9744 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 123315324 is about 11104.7433108560. The cubic root of 123315324 is about 497.7435979504.

Adding to 123315324 its reverse (423513321), we get a palindrome (546828645).

The spelling of 123315324 in words is "one hundred twenty-three million, three hundred fifteen thousand, three hundred twenty-four".