109319112 has 128 divisors (see below), whose sum is σ = 367545600. Its totient is φ = 29389824.

The previous prime is 109319101. The next prime is 109319117. The reversal of 109319112 is 211913901.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (109319117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23578 + ... + 27830.

It is an arithmetic number, because the mean of its divisors is an integer number (2871450).

Almost surely, 2^109319112 is an apocalyptic number.

109319112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109319112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183772800).

109319112 is an abundant number, since it is smaller than the sum of its proper divisors (258226488).

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

109319112 is a wasteful number, since it uses less digits than its factorization.

109319112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4292 (or 4282 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 109319112 is about 10455.5780328014. The cubic root of 109319112 is about 478.1513266549.

The spelling of 109319112 in words is "one hundred nine million, three hundred nineteen thousand, one hundred twelve".