109020 has 48 divisors (see below), whose sum is σ = 322560. Its totient is φ = 27456.

The previous prime is 109013. The next prime is 109037. The reversal of 109020 is 20901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 108987 and 109005.

It is a congruent number.

It is an unprimeable number.

109020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1341 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (6720).

2¹⁰⁹⁰²⁰ is an apocalyptic number.

109020 is a gapful number since it is divisible by the number (10) 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 109020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161280).

109020 is an abundant number, since it is smaller than the sum of its proper divisors (213540).

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

109020 is a wasteful number, since it uses less digits than its factorization.

109020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 109020 is about 330.1817681217. The cubic root of 109020 is about 47.7714832563.

Adding to 109020 its reverse (20901), we get a palindrome (129921).

The spelling of 109020 in words is "one hundred nine thousand, twenty".