111712328 has 64 divisors (see below), whose sum is σ = 259580160. Its totient is φ = 43888896.

The previous prime is 111712327. The next prime is 111712333. The reversal of 111712328 is 823217111.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 111712297 and 111712306.

It is not an unprimeable number, because it can be changed into a prime (111712327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125501 + ... + 126387.

It is an arithmetic number, because the mean of its divisors is an integer number (4055940).

Almost surely, 2^111712328 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 111712328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129790080).

111712328 is an abundant number, since it is smaller than the sum of its proper divisors (147867832).

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

111712328 is a wasteful number, since it uses less digits than its factorization.

111712328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1082 counting only the distinct ones).

The product of its digits is 672, while the sum is 26.

The square root of 111712328 is about 10569.4052812824. The cubic root of 111712328 is about 481.6154022991.

Adding to 111712328 its reverse (823217111), we get a palindrome (934929439).

The spelling of 111712328 in words is "one hundred eleven million, seven hundred twelve thousand, three hundred twenty-eight".