12340338187 has 16 divisors (see below), whose sum is σ = 13079024640. Its totient is φ = 11623221792.

The previous prime is 12340338167. The next prime is 12340338203. The reversal of 12340338187 is 78183304321.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12340338187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12340338167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070428 + ... + 1081894.

It is an arithmetic number, because the mean of its divisors is an integer number (817439040).

Almost surely, 2^12340338187 is an apocalyptic number.

12340338187 is a deficient number, since it is larger than the sum of its proper divisors (738686453).

12340338187 is a wasteful number, since it uses less digits than its factorization.

12340338187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12402.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 12340338187 in words is "twelve billion, three hundred forty million, three hundred thirty-eight thousand, one hundred eighty-seven".