111141072 has 100 divisors (see below), whose sum is σ = 367658016. Its totient is φ = 31752000.

The previous prime is 111141049. The next prime is 111141091. The reversal of 111141072 is 270141111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2947 + ... + 15197.

Almost surely, 2^111141072 is an apocalyptic number.

111141072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111141072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183829008).

111141072 is an abundant number, since it is smaller than the sum of its proper divisors (256516944).

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

111141072 is a wasteful number, since it uses less digits than its factorization.

111141072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12278 (or 12263 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 111141072 is about 10542.3466078478. The cubic root of 111141072 is about 480.7930639649.

Adding to 111141072 its reverse (270141111), we get a palindrome (381282183).

The spelling of 111141072 in words is "one hundred eleven million, one hundred forty-one thousand, seventy-two".