11512207135671 has 16 divisors (see below), whose sum is σ = 16745299579008. Its totient is φ = 6976982309600.

The previous prime is 11512207135631. The next prime is 11512207135729. The reversal of 11512207135671 is 17653170221511.

It is a cyclic number.

It is not a de Polignac number, because 11512207135671 - 2¹⁰ = 11512207134647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512207135631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730125 + ... + 4853606.

It is an arithmetic number, because the mean of its divisors is an integer number (1046581223688).

Almost surely, 2^{11512207135671} is an apocalyptic number.

11512207135671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11512207135671 is a deficient number, since it is larger than the sum of its proper divisors (5233092443337).

11512207135671 is a wasteful number, since it uses less digits than its factorization.

11512207135671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646222.

The product of its (nonzero) digits is 88200, while the sum is 42.

The spelling of 11512207135671 in words is "eleven trillion, five hundred twelve billion, two hundred seven million, one hundred thirty-five thousand, six hundred seventy-one".