111109982 has 8 divisors (see below), whose sum is σ = 166712952. Its totient is φ = 55539000.

The previous prime is 111109981. The next prime is 111109997. The reversal of 111109982 is 289901111.

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

It is a super-3 number, since 3×111109982³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111109981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4757 + ... + 15647.

It is an arithmetic number, because the mean of its divisors is an integer number (20839119).

Almost surely, 2^111109982 is an apocalyptic number.

111109982 is a deficient number, since it is larger than the sum of its proper divisors (55602970).

111109982 is a wasteful number, since it uses less digits than its factorization.

111109982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15994.

The product of its (nonzero) digits is 1296, while the sum is 32.

The square root of 111109982 is about 10540.8719753159. The cubic root of 111109982 is about 480.7482283036.

The spelling of 111109982 in words is "one hundred eleven million, one hundred nine thousand, nine hundred eighty-two".