1130231232 has 280 divisors, whose sum is σ = 3731353472. Its totient is φ = 335923200.

The previous prime is 1130231227. The next prime is 1130231233. The reversal of 1130231232 is 2321320311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130231233) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2088882 + ... + 2089422.

Almost surely, 2^1130231232 is an apocalyptic number.

1130231232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1130231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1865676736).

1130231232 is an abundant number, since it is smaller than the sum of its proper divisors (2601122240).

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

1130231232 is a wasteful number, since it uses less digits than its factorization.

1130231232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1130231232 is about 33618.9118205810. The cubic root of 1130231232 is about 1041.6514786934.

Adding to 1130231232 its reverse (2321320311), we get a palindrome (3451551543).

The spelling of 1130231232 in words is "one billion, one hundred thirty million, two hundred thirty-one thousand, two hundred thirty-two".