1130020 has 12 divisors (see below), whose sum is σ = 2373084. Its totient is φ = 452000.

The previous prime is 1130011. The next prime is 1130023. The reversal of 1130020 is 200311.

It can be written as a sum of positive squares in 2 ways, for example, as 287296 + 842724 = 536^2 + 918^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1129985 and 1130012.

It is not an unprimeable number, because it can be changed into a prime (1130023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28231 + ... + 28270.

It is an arithmetic number, because the mean of its divisors is an integer number (197757).

2^1130020 is an apocalyptic number.

1130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130020 is an abundant number, since it is smaller than the sum of its proper divisors (1243064).

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

1130020 is a wasteful number, since it uses less digits than its factorization.

1130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56510 (or 56508 counting only the distinct ones).

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

The square root of 1130020 is about 1063.0239884405. The cubic root of 1130020 is about 104.1586582288.

Adding to 1130020 its reverse (200311), we get a palindrome (1330331).

The spelling of 1130020 in words is "one million, one hundred thirty thousand, twenty".