10000012110509 has 2 divisors, whose sum is σ = 10000012110510. Its totient is φ = 10000012110508.

The previous prime is 10000012110481. The next prime is 10000012110601. The reversal of 10000012110509 is 90501121000001.

10000012110509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8896678252900 + 1103333857609 = 2982730^2 + 1050397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10000012110509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10000012100509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000006055254 + 5000006055255.

It is an arithmetic number, because the mean of its divisors is an integer number (5000006055255).

Almost surely, 2^{10000012110509} is an apocalyptic number.

It is an amenable number.

10000012110509 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000012110509 is an equidigital number, since it uses as much as digits as its factorization.

10000012110509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 20.

The spelling of 10000012110509 in words is "ten trillion, twelve million, one hundred ten thousand, five hundred nine".