111132138 has 16 divisors (see below), whose sum is σ = 239361696. Its totient is φ = 34194480.

The previous prime is 111132137. The next prime is 111132139. The reversal of 111132138 is 831231111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111132137) and next prime (111132139).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111132137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712308 + ... + 712463.

It is an arithmetic number, because the mean of its divisors is an integer number (14960106).

Almost surely, 2^111132138 is an apocalyptic number.

111132138 is an abundant number, since it is smaller than the sum of its proper divisors (128229558).

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

111132138 is a wasteful number, since it uses less digits than its factorization.

111132138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424789.

The product of its digits is 144, while the sum is 21.

The square root of 111132138 is about 10541.9228796268. The cubic root of 111132138 is about 480.7801808778.

Adding to 111132138 its reverse (831231111), we get a palindrome (942363249).

The spelling of 111132138 in words is "one hundred eleven million, one hundred thirty-two thousand, one hundred thirty-eight".