111343840 has 24 divisors (see below), whose sum is σ = 263050200. Its totient is φ = 44537472.

The previous prime is 111343807. The next prime is 111343853. The reversal of 111343840 is 48343111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347790 + ... + 348109.

It is an arithmetic number, because the mean of its divisors is an integer number (10960425).

Almost surely, 2^111343840 is an apocalyptic number.

111343840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111343840 is an abundant number, since it is smaller than the sum of its proper divisors (151706360).

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

111343840 is an equidigital number, since it uses as much as digits as its factorization.

111343840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695914 (or 695906 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 111343840 is about 10551.9590598144. The cubic root of 111343840 is about 481.0852758329.

Adding to 111343840 its reverse (48343111), we get a palindrome (159686951).

The spelling of 111343840 in words is "one hundred eleven million, three hundred forty-three thousand, eight hundred forty".