1131440330 has 8 divisors (see below), whose sum is σ = 2036592612. Its totient is φ = 452576128.

The previous prime is 1131440327. The next prime is 1131440351. The reversal of 1131440330 is 330441311.

It can be written as a sum of positive squares in 2 ways, for example, as 1073938441 + 57501889 = 32771^2 + 7583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56572007 + ... + 56572026.

Almost surely, 2^1131440330 is an apocalyptic number.

1131440330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131440330 is a deficient number, since it is larger than the sum of its proper divisors (905152282).

1131440330 is a wasteful number, since it uses less digits than its factorization.

1131440330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113144040.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1131440330 is about 33636.8894221805. The cubic root of 1131440330 is about 1042.0227920543.

Adding to 1131440330 its reverse (330441311), we get a palindrome (1461881641).

The spelling of 1131440330 in words is "one billion, one hundred thirty-one million, four hundred forty thousand, three hundred thirty".