109881112 has 64 divisors (see below), whose sum is σ = 237219840. Its totient is φ = 47251200.

The previous prime is 109881103. The next prime is 109881113. The reversal of 109881112 is 211188901.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109881113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127788 + ... + 128644.

It is an arithmetic number, because the mean of its divisors is an integer number (3706560).

Almost surely, 2^109881112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109881112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118609920).

109881112 is an abundant number, since it is smaller than the sum of its proper divisors (127338728).

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

109881112 is a wasteful number, since it uses less digits than its factorization.

109881112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 31.

The square root of 109881112 is about 10482.4191864283. The cubic root of 109881112 is about 478.9693045940.

It can be divided in two parts, 10988 and 1112, that added together give a square (12100 = 110²).

The spelling of 109881112 in words is "one hundred nine million, eight hundred eighty-one thousand, one hundred twelve".