12509010011 has 4 divisors (see below), whose sum is σ = 12588685392. Its totient is φ = 12429334632.

The previous prime is 12509009999. The next prime is 12509010047. The reversal of 12509010011 is 11001090521.

12509010011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12509010011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12509010211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39837455 + ... + 39837768.

It is an arithmetic number, because the mean of its divisors is an integer number (3147171348).

Almost surely, 2^12509010011 is an apocalyptic number.

12509010011 is a deficient number, since it is larger than the sum of its proper divisors (79675381).

12509010011 is an equidigital number, since it uses as much as digits as its factorization.

12509010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79675380.

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

The spelling of 12509010011 in words is "twelve billion, five hundred nine million, ten thousand, eleven".