123004 has 24 divisors (see below), whose sum is σ = 258048. Its totient is φ = 50160.

The previous prime is 123001. The next prime is 123007. The reversal of 123004 is 400321.

It is an interprime number because it is at equal distance from previous prime (123001) and next prime (123007).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549 + ... + 739.

It is an arithmetic number, because the mean of its divisors is an integer number (10752).

2¹²³⁰⁰⁴ is an apocalyptic number.

123004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129024).

123004 is an abundant number, since it is smaller than the sum of its proper divisors (135044).

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

123004 is a wasteful number, since it uses less digits than its factorization.

123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 123004 is about 350.7192609481. The cubic root of 123004 is about 49.7324374260.

Adding to 123004 its reverse (400321), we get a palindrome (523325).

It can be divided in two parts, 1 and 23004, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 123004 in words is "one hundred twenty-three thousand, four", and thus it is an iban number.