12126740913 has 12 divisors (see below), whose sum is σ = 20018747008. Its totient is φ = 6929566200.

The previous prime is 12126740837. The next prime is 12126740981. The reversal of 12126740913 is 31904762121.

It is not a de Polignac number, because 12126740913 - 2¹⁷ = 12126609841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12126740413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96243913 + ... + 96244038.

Almost surely, 2^12126740913 is an apocalyptic number.

It is an amenable number.

12126740913 is a deficient number, since it is larger than the sum of its proper divisors (7892006095).

12126740913 is a wasteful number, since it uses less digits than its factorization.

12126740913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192487964 (or 192487961 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 12126740913 in words is "twelve billion, one hundred twenty-six million, seven hundred forty thousand, nine hundred thirteen".