12109872241 has 2 divisors, whose sum is σ = 12109872242. Its totient is φ = 12109872240.

The previous prime is 12109872239. The next prime is 12109872277. The reversal of 12109872241 is 14227890121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11771165025 + 338707216 = 108495^2 + 18404^2 .

It is a cyclic number.

It is not a de Polignac number, because 12109872241 - 2¹ = 12109872239 is a prime.

Together with 12109872239, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12109872241.

It is not a weakly prime, because it can be changed into another prime (12109872941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6054936120 + 6054936121.

It is an arithmetic number, because the mean of its divisors is an integer number (6054936121).

Almost surely, 2^12109872241 is an apocalyptic number.

It is an amenable number.

12109872241 is a deficient number, since it is larger than the sum of its proper divisors (1).

12109872241 is an equidigital number, since it uses as much as digits as its factorization.

12109872241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 12109872241 in words is "twelve billion, one hundred nine million, eight hundred seventy-two thousand, two hundred forty-one".