108021120 has 128 divisors (see below), whose sum is σ = 347811840. Its totient is φ = 28514304.

The previous prime is 108021119. The next prime is 108021131. The reversal of 108021120 is 21120801.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 108021120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243619 + ... + 244061.

It is an arithmetic number, because the mean of its divisors is an integer number (2717280).

Almost surely, 2^108021120 is an apocalyptic number.

108021120 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 108021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173905920).

108021120 is an abundant number, since it is smaller than the sum of its proper divisors (239790720).

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

108021120 is a wasteful number, since it uses less digits than its factorization.

108021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 108021120 is about 10393.3209322141. The cubic root of 108021120 is about 476.2513560766.

Adding to 108021120 its reverse (21120801), we get a palindrome (129141921).

The spelling of 108021120 in words is "one hundred eight million, twenty-one thousand, one hundred twenty".