111331044 has 96 divisors (see below), whose sum is σ = 325140480. Its totient is φ = 32637600.

The previous prime is 111331037. The next prime is 111331057. The reversal of 111331044 is 440133111.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 31 ways as a sum of consecutive naturals, for example, 35317 + ... + 38339.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^111331044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111331044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162570240).

111331044 is an abundant number, since it is smaller than the sum of its proper divisors (213809436).

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

111331044 is a wasteful number, since it uses less digits than its factorization.

111331044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078 (or 3070 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 111331044 is about 10551.3527094871. The cubic root of 111331044 is about 481.0668458266.

Adding to 111331044 its reverse (440133111), we get a palindrome (551464155).

The spelling of 111331044 in words is "one hundred eleven million, three hundred thirty-one thousand, forty-four".