111243340 has 24 divisors (see below), whose sum is σ = 251581680. Its totient is φ = 41074368.

The previous prime is 111243337. The next prime is 111243389. The reversal of 111243340 is 43342111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213670 + ... + 214189.

It is an arithmetic number, because the mean of its divisors is an integer number (10482570).

Almost surely, 2^111243340 is an apocalyptic number.

111243340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111243340 is an abundant number, since it is smaller than the sum of its proper divisors (140338340).

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

111243340 is a wasteful number, since it uses less digits than its factorization.

111243340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427881 (or 427879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 111243340 is about 10547.1958358608. The cubic root of 111243340 is about 480.9404882263.

Adding to 111243340 its reverse (43342111), we get a palindrome (154585451).

The spelling of 111243340 in words is "one hundred eleven million, two hundred forty-three thousand, three hundred forty".