111323989 has 8 divisors (see below), whose sum is σ = 128395520. Its totient is φ = 94544496.

The previous prime is 111323987. The next prime is 111324001. The reversal of 111323989 is 989323111.

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

It is a cyclic number.

It is not a de Polignac number, because 111323989 - 2¹ = 111323987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111323987) 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, 72189 + ... + 73714.

It is an arithmetic number, because the mean of its divisors is an integer number (16049440).

Almost surely, 2^111323989 is an apocalyptic number.

It is an amenable number.

111323989 is a deficient number, since it is larger than the sum of its proper divisors (17071531).

111323989 is a wasteful number, since it uses less digits than its factorization.

111323989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146019.

The product of its digits is 11664, while the sum is 37.

The square root of 111323989 is about 10551.0183868667. The cubic root of 111323989 is about 481.0566839461.

The spelling of 111323989 in words is "one hundred eleven million, three hundred twenty-three thousand, nine hundred eighty-nine".