1131330330 has 96 divisors (see below), whose sum is σ = 3212576640. Its totient is φ = 274538880.

The previous prime is 1131330289. The next prime is 1131330413. The reversal of 1131330330 is 330331311.

1131330330 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 330 + 330 = 666.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76261 + ... + 89879.

It is an arithmetic number, because the mean of its divisors is an integer number (33464340).

Almost surely, 2^1131330330 is an apocalyptic number.

1131330330 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 1131330330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606288320).

1131330330 is an abundant number, since it is smaller than the sum of its proper divisors (2081246310).

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

1131330330 is a wasteful number, since it uses less digits than its factorization.

1131330330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716 (or 13713 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 1131330330 is about 33635.2542728608. The cubic root of 1131330330 is about 1041.9890220537.

Adding to 1131330330 its reverse (330331311), we get a palindrome (1461661641).

The spelling of 1131330330 in words is "one billion, one hundred thirty-one million, three hundred thirty thousand, three hundred thirty".