12520120 has 16 divisors (see below), whose sum is σ = 28170360. Its totient is φ = 5008032.

The previous prime is 12520111. The next prime is 12520127. The reversal of 12520120 is 2102521.

12520120 is nontrivially palindromic in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 12520120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520127) 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 3 ways as a sum of consecutive naturals, for example, 156462 + ... + 156541.

Almost surely, 2^12520120 is an apocalyptic number.

12520120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12520120 is an abundant number, since it is smaller than the sum of its proper divisors (15650240).

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

12520120 is a wasteful number, since it uses less digits than its factorization.

12520120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313014 (or 313010 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 12520120 is about 3538.3781595528. The cubic root of 12520120 is about 232.2038932885.

Adding to 12520120 its reverse (2102521), we get a palindrome (14622641).

The spelling of 12520120 in words is "twelve million, five hundred twenty thousand, one hundred twenty".