12111230443 has 16 divisors (see below), whose sum is σ = 13469483776. Its totient is φ = 10814238720.

The previous prime is 12111230441. The next prime is 12111230501. The reversal of 12111230443 is 34403211121.

It is a cyclic number.

It is not a de Polignac number, because 12111230443 - 2¹ = 12111230441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111230441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1184971 + ... + 1195147.

It is an arithmetic number, because the mean of its divisors is an integer number (841842736).

Almost surely, 2^12111230443 is an apocalyptic number.

12111230443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12111230443 is a deficient number, since it is larger than the sum of its proper divisors (1358253333).

12111230443 is a wasteful number, since it uses less digits than its factorization.

12111230443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13174.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12111230443 its reverse (34403211121), we get a palindrome (46514441564).

The spelling of 12111230443 in words is "twelve billion, one hundred eleven million, two hundred thirty thousand, four hundred forty-three".