111444343013 has 4 divisors (see below), whose sum is σ = 117999892620. Its totient is φ = 104888793408.

The previous prime is 111444342949. The next prime is 111444343019. The reversal of 111444343013 is 310343444111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310343444111 = 541 ⋅573647771.

It can be written as a sum of positive squares in 2 ways, for example, as 32158172929 + 79286170084 = 179327^2 + 281578^2 .

It is not a de Polignac number, because 111444343013 - 2⁶ = 111444342949 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 (111444343019) 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, 3277774778 + ... + 3277774811.

It is an arithmetic number, because the mean of its divisors is an integer number (29499973155).

Almost surely, 2^111444343013 is an apocalyptic number.

It is an amenable number.

111444343013 is a deficient number, since it is larger than the sum of its proper divisors (6555549607).

111444343013 is an equidigital number, since it uses as much as digits as its factorization.

111444343013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555549606.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 111444343013 its reverse (310343444111), we get a palindrome (421787787124).

The spelling of 111444343013 in words is "one hundred eleven billion, four hundred forty-four million, three hundred forty-three thousand, thirteen".