12511272117 has 8 divisors (see below), whose sum is σ = 16834739680. Its totient is φ = 8264326320.

The previous prime is 12511272101. The next prime is 12511272127. The reversal of 12511272117 is 71127211521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12511272117 - 2⁴ = 12511272101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12511272127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19130059 + ... + 19130712.

It is an arithmetic number, because the mean of its divisors is an integer number (2104342460).

Almost surely, 2^12511272117 is an apocalyptic number.

It is an amenable number.

12511272117 is a deficient number, since it is larger than the sum of its proper divisors (4323467563).

12511272117 is a wasteful number, since it uses less digits than its factorization.

12511272117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38260883.

The product of its digits is 1960, while the sum is 30.

Adding to 12511272117 its reverse (71127211521), we get a palindrome (83638483638).

The spelling of 12511272117 in words is "twelve billion, five hundred eleven million, two hundred seventy-two thousand, one hundred seventeen".