123520200 has 96 divisors (see below), whose sum is σ = 386165760. Its totient is φ = 32659200.

The previous prime is 123520169. The next prime is 123520211. The reversal of 123520200 is 2025321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 123520200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75390 + ... + 77010.

It is an arithmetic number, because the mean of its divisors is an integer number (4022560).

Almost surely, 2^123520200 is an apocalyptic number.

123520200 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 123520200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193082880).

123520200 is an abundant number, since it is smaller than the sum of its proper divisors (262645560).

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

123520200 is a wasteful number, since it uses less digits than its factorization.

123520200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 123520200 is about 11113.9641892531. The cubic root of 123520200 is about 498.0190957340.

Adding to 123520200 its reverse (2025321), we get a palindrome (125545521).

The spelling of 123520200 in words is "one hundred twenty-three million, five hundred twenty thousand, two hundred".