111332121 has 8 divisors (see below), whose sum is σ = 154896960. Its totient is φ = 70994352.

The previous prime is 111332107. The next prime is 111332141. The reversal of 111332121 is 121233111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111332121 - 2¹¹ = 111330073 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111332121.

It is not an unprimeable number, because it can be changed into a prime (111332101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 806686 + ... + 806823.

It is an arithmetic number, because the mean of its divisors is an integer number (19362120).

Almost surely, 2^111332121 is an apocalyptic number.

It is an amenable number.

111332121 is a deficient number, since it is larger than the sum of its proper divisors (43564839).

111332121 is a wasteful number, since it uses less digits than its factorization.

111332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613535.

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

The square root of 111332121 is about 10551.4037454739. The cubic root of 111332121 is about 481.0683970780.

Adding to 111332121 its reverse (121233111), we get a palindrome (232565232).

The spelling of 111332121 in words is "one hundred eleven million, three hundred thirty-two thousand, one hundred twenty-one".