12103940755 has 16 divisors (see below), whose sum is σ = 15421069440. Its totient is φ = 9088699392.

The previous prime is 12103940753. The next prime is 12103940803. The reversal of 12103940755 is 55704930121.

It is not a de Polignac number, because 12103940755 - 2¹ = 12103940753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103940753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162810 + ... + 225199.

It is an arithmetic number, because the mean of its divisors is an integer number (963816840).

Almost surely, 2^12103940755 is an apocalyptic number.

12103940755 is a deficient number, since it is larger than the sum of its proper divisors (3317128685).

12103940755 is a wasteful number, since it uses less digits than its factorization.

12103940755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388398.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 12103940755 in words is "twelve billion, one hundred three million, nine hundred forty thousand, seven hundred fifty-five".