12103120211 has 16 divisors (see below), whose sum is σ = 15035376384. Its totient is φ = 9486591264.

The previous prime is 12103120201. The next prime is 12103120231. The reversal of 12103120211 is 11202130121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12103120211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103120201) 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, 611765 + ... + 631238.

It is an arithmetic number, because the mean of its divisors is an integer number (939711024).

Almost surely, 2^12103120211 is an apocalyptic number.

12103120211 is a deficient number, since it is larger than the sum of its proper divisors (2932256173).

12103120211 is a wasteful number, since it uses less digits than its factorization.

12103120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243130.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12103120211 its reverse (11202130121), we get a palindrome (23305250332).

The spelling of 12103120211 in words is "twelve billion, one hundred three million, one hundred twenty thousand, two hundred eleven".