123023504 has 40 divisors (see below), whose sum is σ = 251085120. Its totient is φ = 58278528.

The previous prime is 123023477. The next prime is 123023507. The reversal of 123023504 is 405320321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123023507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38579 + ... + 41645.

It is an arithmetic number, because the mean of its divisors is an integer number (6277128).

Almost surely, 2^123023504 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 123023504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125542560).

123023504 is an abundant number, since it is smaller than the sum of its proper divisors (128061616).

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

123023504 is a wasteful number, since it uses less digits than its factorization.

123023504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 123023504 is about 11091.5960979473. The cubic root of 123023504 is about 497.3506587765.

Adding to 123023504 its reverse (405320321), we get a palindrome (528343825).

The spelling of 123023504 in words is "one hundred twenty-three million, twenty-three thousand, five hundred four".