1320120 has 96 divisors (see below), whose sum is σ = 4539600. Its totient is φ = 331776.

The previous prime is 1320119. The next prime is 1320127. The reversal of 1320120 is 210231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6744 + ... + 6936.

2^1320120 is an apocalyptic number.

1320120 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 1320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2269800).

1320120 is an abundant number, since it is smaller than the sum of its proper divisors (3219480).

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

1320120 is a wasteful number, since it uses less digits than its factorization.

1320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1320120 is about 1148.9647514176. The cubic root of 1320120 is about 109.6994550731.

Adding to 1320120 its reverse (210231), we get a palindrome (1530351).

The spelling of 1320120 in words is "one million, three hundred twenty thousand, one hundred twenty".