12043111142 has 4 divisors (see below), whose sum is σ = 18064666716. Its totient is φ = 6021555570.

The previous prime is 12043111139. The next prime is 12043111159. The reversal of 12043111142 is 24111134021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3010777784 + ... + 3010777787.

It is an arithmetic number, because the mean of its divisors is an integer number (4516166679).

Almost surely, 2^12043111142 is an apocalyptic number.

12043111142 is a deficient number, since it is larger than the sum of its proper divisors (6021555574).

12043111142 is an equidigital number, since it uses as much as digits as its factorization.

12043111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021555573.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12043111142 its reverse (24111134021), we get a palindrome (36154245163).

The spelling of 12043111142 in words is "twelve billion, forty-three million, one hundred eleven thousand, one hundred forty-two".