1131030 has 64 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 292320.

The previous prime is 1131023. The next prime is 1131047. The reversal of 1131030 is 301311.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15895 + ... + 15965.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2^1131030 is an apocalyptic number.

1131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555200).

1131030 is an abundant number, since it is smaller than the sum of its proper divisors (1979370).

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

1131030 is a wasteful number, since it uses less digits than its factorization.

1131030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 140 counting only the distinct ones).

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

The square root of 1131030 is about 1063.4989421715. The cubic root of 1131030 is about 104.1896809594.

Adding to 1131030 its reverse (301311), we get a palindrome (1432341).

The spelling of 1131030 in words is "one million, one hundred thirty-one thousand, thirty".