111111344340 has 96 divisors (see below), whose sum is σ = 311959595136. Its totient is φ = 29549076480.

The previous prime is 111111344263. The next prime is 111111344341. The reversal of 111111344340 is 43443111111.

It is a self number, because there is not a number n which added to its sum of digits gives 111111344340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111344341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53340939 + ... + 53343021.

It is an arithmetic number, because the mean of its divisors is an integer number (3249579116).

Almost surely, 2^111111344340 is an apocalyptic number.

111111344340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111111344340 is an abundant number, since it is smaller than the sum of its proper divisors (200848250796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111111344340 is a wasteful number, since it uses less digits than its factorization.

111111344340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089 (or 4087 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 111111344340 its reverse (43443111111), we get a palindrome (154554455451).

The spelling of 111111344340 in words is "one hundred eleven billion, one hundred eleven million, three hundred forty-four thousand, three hundred forty".