12120052015 has 16 divisors (see below), whose sum is σ = 14694443136. Its totient is φ = 9595872000.

The previous prime is 12120052013. The next prime is 12120052027. The reversal of 12120052015 is 51025002121.

12120052015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12120052015 - 2¹ = 12120052013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120051983 and 12120052001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120052013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1730170 + ... + 1737160.

It is an arithmetic number, because the mean of its divisors is an integer number (918402696).

Almost surely, 2^12120052015 is an apocalyptic number.

12120052015 is a deficient number, since it is larger than the sum of its proper divisors (2574391121).

12120052015 is a wasteful number, since it uses less digits than its factorization.

12120052015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530.

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 12120052015 its reverse (51025002121), we get a palindrome (63145054136).

The spelling of 12120052015 in words is "twelve billion, one hundred twenty million, fifty-two thousand, fifteen".