12126132115 has 4 divisors (see below), whose sum is σ = 14551358544. Its totient is φ = 9700905688.

The previous prime is 12126132089. The next prime is 12126132121. The reversal of 12126132115 is 51123162121.

12126132115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51123162121 = 43 ⋅1188910747.

It is a cyclic number.

It is not a de Polignac number, because 12126132115 - 2¹⁹ = 12125607827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12126132115.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1212613207 + ... + 1212613216.

It is an arithmetic number, because the mean of its divisors is an integer number (3637839636).

Almost surely, 2^12126132115 is an apocalyptic number.

12126132115 is a deficient number, since it is larger than the sum of its proper divisors (2425226429).

12126132115 is an equidigital number, since it uses as much as digits as its factorization.

12126132115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425226428.

The product of its digits is 720, while the sum is 25.

Adding to 12126132115 its reverse (51123162121), we get a palindrome (63249294236).

The spelling of 12126132115 in words is "twelve billion, one hundred twenty-six million, one hundred thirty-two thousand, one hundred fifteen".