11311303312 has 40 divisors (see below), whose sum is σ = 22638051072. Its totient is φ = 5469475200.

The previous prime is 11311303303. The next prime is 11311303319. The reversal of 11311303312 is 21330311311.

It is a self number, because there is not a number n which added to its sum of digits gives 11311303312.

It is not an unprimeable number, because it can be changed into a prime (11311303319) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 804987 + ... + 818917.

Almost surely, 2^11311303312 is an apocalyptic number.

It is an amenable number.

11311303312 is an abundant number, since it is smaller than the sum of its proper divisors (11326747760).

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

11311303312 is a wasteful number, since it uses less digits than its factorization.

11311303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607 (or 15601 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11311303312 its reverse (21330311311), we get a palindrome (32641614623).

The spelling of 11311303312 in words is "eleven billion, three hundred eleven million, three hundred three thousand, three hundred twelve".