12300520 has 32 divisors (see below), whose sum is σ = 29305800. Its totient is φ = 4630528.

The previous prime is 12300499. The next prime is 12300523. The reversal of 12300520 is 2500321.

It can be written as a sum of positive squares in 4 ways, for example, as 12236004 + 64516 = 3498^2 + 254^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12300520.

It is not an unprimeable number, because it can be changed into a prime (12300523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8365 + ... + 9724.

Almost surely, 2^12300520 is an apocalyptic number.

12300520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12300520 is an abundant number, since it is smaller than the sum of its proper divisors (17005280).

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

12300520 is a wasteful number, since it uses less digits than its factorization.

12300520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18117 (or 18113 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 12300520 is about 3507.2097171398. The cubic root of 12300520 is about 230.8382768892.

Adding to 12300520 its reverse (2500321), we get a palindrome (14800841).

The spelling of 12300520 in words is "twelve million, three hundred thousand, five hundred twenty".