1130311228 has 12 divisors (see below), whose sum is σ = 1978554592. Its totient is φ = 565009920.

The previous prime is 1130311219. The next prime is 1130311229. The reversal of 1130311228 is 8221130311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1130311199 and 1130311208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130311229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17925 + ... + 50812.

Almost surely, 2^1130311228 is an apocalyptic number.

It is an amenable number.

1130311228 is a deficient number, since it is larger than the sum of its proper divisors (848243364).

1130311228 is a wasteful number, since it uses less digits than its factorization.

1130311228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72852 (or 72850 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1130311228 is about 33620.1015465450. The cubic root of 1130311228 is about 1041.6760536015.

Adding to 1130311228 its reverse (8221130311), we get a palindrome (9351441539).

The spelling of 1130311228 in words is "one billion, one hundred thirty million, three hundred eleven thousand, two hundred twenty-eight".