12381097247 has 8 divisors (see below), whose sum is σ = 12646259136. Its totient is φ = 12116007712.

The previous prime is 12381097241. The next prime is 12381097279. The reversal of 12381097247 is 74279018321.

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 12381097247 - 2²² = 12376902943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12381097198 and 12381097207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381097241) 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, 463253 + ... + 489249.

It is an arithmetic number, because the mean of its divisors is an integer number (1580782392).

Almost surely, 2^12381097247 is an apocalyptic number.

12381097247 is a deficient number, since it is larger than the sum of its proper divisors (265161889).

12381097247 is a wasteful number, since it uses less digits than its factorization.

12381097247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36177.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 12381097247 in words is "twelve billion, three hundred eighty-one million, ninety-seven thousand, two hundred forty-seven".