111312132 has 24 divisors (see below), whose sum is σ = 266749056. Its totient is φ = 36101088.

The previous prime is 111312109. The next prime is 111312133. The reversal of 111312132 is 231213111.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (111312133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124908 + ... + 125795.

It is an arithmetic number, because the mean of its divisors is an integer number (11114544).

Almost surely, 2^111312132 is an apocalyptic number.

111312132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111312132 is an abundant number, since it is smaller than the sum of its proper divisors (155436924).

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

111312132 is a wasteful number, since it uses less digits than its factorization.

111312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250747 (or 250745 counting only the distinct ones).

The product of its digits is 36, while the sum is 15.

The square root of 111312132 is about 10550.4564830153. The cubic root of 111312132 is about 481.0396043940.

Adding to 111312132 its reverse (231213111), we get a palindrome (342525243).

The spelling of 111312132 in words is "one hundred eleven million, three hundred twelve thousand, one hundred thirty-two".