111341121143 has 4 divisors (see below), whose sum is σ = 127246995600. Its totient is φ = 95435246688.

The previous prime is 111341121127. The next prime is 111341121149. The reversal of 111341121143 is 341121143111.

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 111341121143 - 2⁴ = 111341121127 is a prime.

It is a super-5 number, since 5×111341121143⁵ (a number of 56 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111341121149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7952937218 + ... + 7952937231.

It is an arithmetic number, because the mean of its divisors is an integer number (31811748900).

Almost surely, 2^111341121143 is an apocalyptic number.

111341121143 is a deficient number, since it is larger than the sum of its proper divisors (15905874457).

111341121143 is an equidigital number, since it uses as much as digits as its factorization.

111341121143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15905874456.

The product of its digits is 288, while the sum is 23.

Adding to 111341121143 its reverse (341121143111), we get a palindrome (452462264254).

It can be divided in two parts, 111 and 341121143, that multiplied together give a palindrome (37864446873).

The spelling of 111341121143 in words is "one hundred eleven billion, three hundred forty-one million, one hundred twenty-one thousand, one hundred forty-three".