12387230837 has 4 divisors (see below), whose sum is σ = 12395496000. Its totient is φ = 12378965676.

The previous prime is 12387230827. The next prime is 12387230879. The reversal of 12387230837 is 73803278321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73803278321 = 17 ⋅4341369313.

It is a cyclic number.

It is not a de Polignac number, because 12387230837 - 2³² = 8092263541 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 (12387230827) 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, 4130333 + ... + 4133330.

It is an arithmetic number, because the mean of its divisors is an integer number (3098874000).

Almost surely, 2^12387230837 is an apocalyptic number.

It is an amenable number.

12387230837 is a deficient number, since it is larger than the sum of its proper divisors (8265163).

12387230837 is an equidigital number, since it uses as much as digits as its factorization.

12387230837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265162.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 12387230837 in words is "twelve billion, three hundred eighty-seven million, two hundred thirty thousand, eight hundred thirty-seven".