1131331230 has 24 divisors (see below), whose sum is σ = 2941461432. Its totient is φ = 301688304.

The previous prime is 1131331217. The next prime is 1131331237. The reversal of 1131331230 is 321331311.

It is a happy number.

1131331230 is a `hidden beast` number, since 11 + 313 + 312 + 30 = 666.

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 (1131331237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6285084 + ... + 6285263.

It is an arithmetic number, because the mean of its divisors is an integer number (122560893).

Almost surely, 2^1131331230 is an apocalyptic number.

1131331230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131331230 is an abundant number, since it is smaller than the sum of its proper divisors (1810130202).

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

1131331230 is a wasteful number, since it uses less digits than its factorization.

1131331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570360 (or 12570357 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1131331230 is about 33635.2676516778. The cubic root of 1131331230 is about 1041.9892983626.

Adding to 1131331230 its reverse (321331311), we get a palindrome (1452662541).

The spelling of 1131331230 in words is "one billion, one hundred thirty-one million, three hundred thirty-one thousand, two hundred thirty".