12111303143 has 4 divisors (see below), whose sum is σ = 12224493000. Its totient is φ = 11998113288.

The previous prime is 12111303079. The next prime is 12111303181. The reversal of 12111303143 is 34130311121.

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 12111303143 - 2⁶ = 12111303079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111303343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56594768 + ... + 56594981.

It is an arithmetic number, because the mean of its divisors is an integer number (3056123250).

Almost surely, 2^12111303143 is an apocalyptic number.

12111303143 is a deficient number, since it is larger than the sum of its proper divisors (113189857).

12111303143 is a wasteful number, since it uses less digits than its factorization.

12111303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113189856.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12111303143 its reverse (34130311121), we get a palindrome (46241614264).

The spelling of 12111303143 in words is "twelve billion, one hundred eleven million, three hundred three thousand, one hundred forty-three".