1131130230 has 64 divisors (see below), whose sum is σ = 2864816640. Its totient is φ = 285037056.

The previous prime is 1131130223. The next prime is 1131130237. The reversal of 1131130230 is 320311311.

It is an interprime number because it is at equal distance from previous prime (1131130223) and next prime (1131130237).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131130237) 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, 244519 + ... + 249101.

It is an arithmetic number, because the mean of its divisors is an integer number (44762760).

Almost surely, 2^1131130230 is an apocalyptic number.

1131130230 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 1131130230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432408320).

1131130230 is an abundant number, since it is smaller than the sum of its proper divisors (1733686410).

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

1131130230 is a wasteful number, since it uses less digits than its factorization.

1131130230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1131130230 is about 33632.2795837570. The cubic root of 1131130230 is about 1041.9275857394.

Adding to 1131130230 its reverse (320311311), we get a palindrome (1451441541).

The spelling of 1131130230 in words is "one billion, one hundred thirty-one million, one hundred thirty thousand, two hundred thirty".