12103121241 has 6 divisors (see below), whose sum is σ = 17482286250. Its totient is φ = 8068747488.

The previous prime is 12103121237. The next prime is 12103121243. The reversal of 12103121241 is 14212130121.

It can be written as a sum of positive squares in only one way, i.e., 11708105616 + 395015625 = 108204^2 + 19875^2 .

It is not a de Polignac number, because 12103121241 - 2² = 12103121237 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12103121243) 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 5 ways as a sum of consecutive naturals, for example, 672395616 + ... + 672395633.

It is an arithmetic number, because the mean of its divisors is an integer number (2913714375).

Almost surely, 2^12103121241 is an apocalyptic number.

It is an amenable number.

12103121241 is a deficient number, since it is larger than the sum of its proper divisors (5379165009).

12103121241 is a wasteful number, since it uses less digits than its factorization.

12103121241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344791255 (or 1344791252 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12103121241 its reverse (14212130121), we get a palindrome (26315251362).

The spelling of 12103121241 in words is "twelve billion, one hundred three million, one hundred twenty-one thousand, two hundred forty-one".