12143197708387 has 4 divisors (see below), whose sum is σ = 12147586290016. Its totient is φ = 12138809126760.

The previous prime is 12143197708373. The next prime is 12143197708429. The reversal of 12143197708387 is 78380779134121.

It is a happy number.

12143197708387 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 not a de Polignac number, because 12143197708387 - 2²⁷ = 12143063490659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143197708357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2194286664 + ... + 2194292197.

It is an arithmetic number, because the mean of its divisors is an integer number (3036896572504).

Almost surely, 2^{12143197708387} is an apocalyptic number.

12143197708387 is a deficient number, since it is larger than the sum of its proper divisors (4388581629).

12143197708387 is an equidigital number, since it uses as much as digits as its factorization.

12143197708387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388581628.

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 12143197708387 in words is "twelve trillion, one hundred forty-three billion, one hundred ninety-seven million, seven hundred eight thousand, three hundred eighty-seven".