12102347 has 4 divisors (see below), whose sum is σ = 12628560. Its totient is φ = 11576136.

The previous prime is 12102331. The next prime is 12102371. The reversal of 12102347 is 74320121.

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 12102347 - 2⁴ = 12102331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263072 + ... + 263117.

It is an arithmetic number, because the mean of its divisors is an integer number (3157140).

Almost surely, 2^12102347 is an apocalyptic number.

12102347 is a deficient number, since it is larger than the sum of its proper divisors (526213).

12102347 is an equidigital number, since it uses as much as digits as its factorization.

12102347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526212.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12102347 is about 3478.8427673581. The cubic root of 12102347 is about 229.5918849593.

Adding to 12102347 its reverse (74320121), we get a palindrome (86422468).

The spelling of 12102347 in words is "twelve million, one hundred two thousand, three hundred forty-seven".