111234242143 has 4 divisors (see below), whose sum is σ = 117088675960. Its totient is φ = 105379808328.

The previous prime is 111234242101. The next prime is 111234242179. The reversal of 111234242143 is 341242432111.

It is a happy number.

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 111234242143 - 2⁹ = 111234241631 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 (111234242843) 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, 2927216880 + ... + 2927216917.

It is an arithmetic number, because the mean of its divisors is an integer number (29272168990).

Almost surely, 2^111234242143 is an apocalyptic number.

111234242143 is a deficient number, since it is larger than the sum of its proper divisors (5854433817).

111234242143 is an equidigital number, since it uses as much as digits as its factorization.

111234242143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854433816.

The product of its digits is 4608, while the sum is 28.

Adding to 111234242143 its reverse (341242432111), we get a palindrome (452476674254).

The spelling of 111234242143 in words is "one hundred eleven billion, two hundred thirty-four million, two hundred forty-two thousand, one hundred forty-three".