123500104 has 96 divisors (see below), whose sum is σ = 303266880. Its totient is φ = 45904896.

The previous prime is 123500093. The next prime is 123500107. The reversal of 123500104 is 401005321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123500107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210099 + ... + 210685.

It is an arithmetic number, because the mean of its divisors is an integer number (3159030).

Almost surely, 2^123500104 is an apocalyptic number.

123500104 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 123500104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151633440).

123500104 is an abundant number, since it is smaller than the sum of its proper divisors (179766776).

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

123500104 is a wasteful number, since it uses less digits than its factorization.

123500104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 123500104 is about 11113.0600646267. The cubic root of 123500104 is about 497.9920860234.

Adding to 123500104 its reverse (401005321), we get a palindrome (524505425).

The spelling of 123500104 in words is "one hundred twenty-three million, five hundred thousand, one hundred four".