1131042588 has 96 divisors (see below), whose sum is σ = 2938231296. Its totient is φ = 336413952.

The previous prime is 1131042587. The next prime is 1131042607. The reversal of 1131042588 is 8852401311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131042587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690106 + ... + 691742.

It is an arithmetic number, because the mean of its divisors is an integer number (30606576).

Almost surely, 2^1131042588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131042588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469115648).

1131042588 is an abundant number, since it is smaller than the sum of its proper divisors (1807188708).

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

1131042588 is a wasteful number, since it uses less digits than its factorization.

1131042588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1801 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1131042588 is about 33630.9766138303. The cubic root of 1131042588 is about 1041.9006749046.

Adding to 1131042588 its reverse (8852401311), we get a palindrome (9983443899).

The spelling of 1131042588 in words is "one billion, one hundred thirty-one million, forty-two thousand, five hundred eighty-eight".