111142144212143 has 4 divisors (see below), whose sum is σ = 121245975504168. Its totient is φ = 101038312920120.

The previous prime is 111142144212119. The next prime is 111142144212149. The reversal of 111142144212143 is 341212441241111.

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 111142144212143 - 2⁸ = 111142144211887 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 (111142144212149) 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, 5051915645996 + ... + 5051915646017.

It is an arithmetic number, because the mean of its divisors is an integer number (30311493876042).

Almost surely, 2^{111142144212143} is an apocalyptic number.

111142144212143 is a deficient number, since it is larger than the sum of its proper divisors (10103831292025).

111142144212143 is a wasteful number, since it uses less digits than its factorization.

111142144212143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10103831292024.

The product of its digits is 6144, while the sum is 32.

Adding to 111142144212143 its reverse (341212441241111), we get a palindrome (452354585453254).

The spelling of 111142144212143 in words is "one hundred eleven trillion, one hundred forty-two billion, one hundred forty-four million, two hundred twelve thousand, one hundred forty-three".