12381038369 has 8 divisors (see below), whose sum is σ = 14239885248. Its totient is φ = 10544723280.

The previous prime is 12381038311. The next prime is 12381038389. The reversal of 12381038369 is 96383018321.

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

It is not a de Polignac number, because 12381038369 - 2⁸ = 12381038113 is a prime.

It is a super-2 number, since 2×12381038369² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12381038389) 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 7 ways as a sum of consecutive naturals, for example, 5631767 + ... + 5633964.

It is an arithmetic number, because the mean of its divisors is an integer number (1779985656).

Almost surely, 2^12381038369 is an apocalyptic number.

It is an amenable number.

12381038369 is a deficient number, since it is larger than the sum of its proper divisors (1858846879).

12381038369 is a wasteful number, since it uses less digits than its factorization.

12381038369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11265895.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 12381038369 in words is "twelve billion, three hundred eighty-one million, thirty-eight thousand, three hundred sixty-nine".