123243600 has 120 divisors (see below), whose sum is σ = 407648512. Its totient is φ = 31795200.

The previous prime is 123243539. The next prime is 123243613. The reversal of 123243600 is 6342321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 35544 + ... + 38856.

Almost surely, 2^123243600 is an apocalyptic number.

123243600 is a gapful number since it is divisible by the number (10) 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 123243600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203824256).

123243600 is an abundant number, since it is smaller than the sum of its proper divisors (284404912).

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

123243600 is a wasteful number, since it uses less digits than its factorization.

123243600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365 (or 3354 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123243600 is about 11101.5134103419. The cubic root of 123243600 is about 497.6470782200.

Adding to 123243600 its reverse (6342321), we get a palindrome (129585921).

The spelling of 123243600 in words is "one hundred twenty-three million, two hundred forty-three thousand, six hundred".