12315871511 has 8 divisors (see below), whose sum is σ = 12362256384. Its totient is φ = 12269557080.

The previous prime is 12315871507. The next prime is 12315871517. The reversal of 12315871511 is 11517851321.

12315871511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12315871511 - 2² = 12315871507 is a prime.

It is a super-2 number, since 2×12315871511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315871517) 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 7 ways as a sum of consecutive naturals, for example, 346766 + ... + 380628.

It is an arithmetic number, because the mean of its divisors is an integer number (1545282048).

Almost surely, 2^12315871511 is an apocalyptic number.

12315871511 is a deficient number, since it is larger than the sum of its proper divisors (46384873).

12315871511 is an equidigital number, since it uses as much as digits as its factorization.

12315871511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35221.

The product of its digits is 8400, while the sum is 35.

The spelling of 12315871511 in words is "twelve billion, three hundred fifteen million, eight hundred seventy-one thousand, five hundred eleven".