111221424011143 has 8 divisors (see below), whose sum is σ = 116072394905088. Its totient is φ = 106371724517784.

The previous prime is 111221424011141. The next prime is 111221424011153. The reversal of 111221424011143 is 341110424122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111221424011143 - 2¹ = 111221424011141 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 (111221424011141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317671371 + ... + 318021292.

It is an arithmetic number, because the mean of its divisors is an integer number (14509049363136).

Almost surely, 2^{111221424011143} is an apocalyptic number.

111221424011143 is a deficient number, since it is larger than the sum of its proper divisors (4850970893945).

111221424011143 is an equidigital number, since it uses as much as digits as its factorization.

111221424011143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635700293.

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 111221424011143 its reverse (341110424122111), we get a palindrome (452331848133254).

The spelling of 111221424011143 in words is "one hundred eleven trillion, two hundred twenty-one billion, four hundred twenty-four million, eleven thousand, one hundred forty-three".