12115015671 has 8 divisors (see below), whose sum is σ = 17621841024. Its totient is φ = 7342433720.

The previous prime is 12115015663. The next prime is 12115015673. The reversal of 12115015671 is 17651051121.

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

It is a cyclic number.

It is not a de Polignac number, because 12115015671 - 2³ = 12115015663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115015673) 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, 183560811 + ... + 183560876.

It is an arithmetic number, because the mean of its divisors is an integer number (2202730128).

Almost surely, 2^12115015671 is an apocalyptic number.

12115015671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12115015671 is a deficient number, since it is larger than the sum of its proper divisors (5506825353).

12115015671 is a wasteful number, since it uses less digits than its factorization.

12115015671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367121701.

The product of its (nonzero) digits is 2100, while the sum is 30.

Adding to 12115015671 its reverse (17651051121), we get a palindrome (29766066792).

The spelling of 12115015671 in words is "twelve billion, one hundred fifteen million, fifteen thousand, six hundred seventy-one".