10800120 has 32 divisors (see below), whose sum is σ = 32400720. Its totient is φ = 2880000.

The previous prime is 10800109. The next prime is 10800137. The reversal of 10800120 is 2100801.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 10800096 and 10800105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44881 + ... + 45120.

Almost surely, 2^10800120 is an apocalyptic number.

10800120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10800120 is an abundant number, since it is smaller than the sum of its proper divisors (21600600).

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

10800120 is a wasteful number, since it uses less digits than its factorization.

10800120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90015 (or 90011 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 10800120 is about 3286.3536023989. The cubic root of 10800120 is about 221.0427085891.

Adding to 10800120 its reverse (2100801), we get a palindrome (12900921).

The spelling of 10800120 in words is "ten million, eight hundred thousand, one hundred twenty".