12102443 has 4 divisors (see below), whose sum is σ = 12190920. Its totient is φ = 12013968.

The previous prime is 12102427. The next prime is 12102457. The reversal of 12102443 is 34420121.

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 12102443 - 2⁴ = 12102427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102403) 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, 44033 + ... + 44306.

It is an arithmetic number, because the mean of its divisors is an integer number (3047730).

Almost surely, 2^12102443 is an apocalyptic number.

12102443 is a deficient number, since it is larger than the sum of its proper divisors (88477).

12102443 is an equidigital number, since it uses as much as digits as its factorization.

12102443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88476.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12102443 is about 3478.8565650225. The cubic root of 12102443 is about 229.5924920250.

Adding to 12102443 its reverse (34420121), we get a palindrome (46522564).

The spelling of 12102443 in words is "twelve million, one hundred two thousand, four hundred forty-three".