1003120 has 20 divisors (see below), whose sum is σ = 2332440. Its totient is φ = 401216.

The previous prime is 1003111. The next prime is 1003133. The reversal of 1003120 is 213001.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6190 + ... + 6349.

It is an arithmetic number, because the mean of its divisors is an integer number (116622).

2^1003120 is an apocalyptic number.

1003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003120 is an abundant number, since it is smaller than the sum of its proper divisors (1329320).

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

1003120 is a wasteful number, since it uses less digits than its factorization.

1003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12552 (or 12546 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1003120 is about 1001.5587850945. The cubic root of 1003120 is about 100.1038920271.

Adding to 1003120 its reverse (213001), we get a palindrome (1216121).

The spelling of 1003120 in words is "one million, three thousand, one hundred twenty".