12111242443 has 8 divisors (see below), whose sum is σ = 12396333488. Its totient is φ = 11826307584.

The previous prime is 12111242431. The next prime is 12111242461. The reversal of 12111242443 is 34424211121.

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 12111242443 - 2¹⁷ = 12111111371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111242413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125971 + ... + 200227.

It is an arithmetic number, because the mean of its divisors is an integer number (1549541686).

Almost surely, 2^12111242443 is an apocalyptic number.

12111242443 is a deficient number, since it is larger than the sum of its proper divisors (285091045).

12111242443 is an equidigital number, since it uses as much as digits as its factorization.

12111242443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78093.

The product of its digits is 1536, while the sum is 25.

Adding to 12111242443 its reverse (34424211121), we get a palindrome (46535453564).

The spelling of 12111242443 in words is "twelve billion, one hundred eleven million, two hundred forty-two thousand, four hundred forty-three".