11287229581312 has 24 divisors (see below), whose sum is σ = 22568947824150. Its totient is φ = 5643614789632.

The previous prime is 11287229581289. The next prime is 11287229581319. The reversal of 11287229581312 is 21318592278211.

It can be written as a sum of positive squares in only one way, i.e., 10149474558976 + 1137755022336 = 3185824^2 + 1066656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11287229581312.

It is not an unprimeable number, because it can be changed into a prime (11287229581319) 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 as a sum of consecutive naturals, namely, 2755669237 + ... + 2755673332.

Almost surely, 2^{11287229581312} is an apocalyptic number.

It is an amenable number.

11287229581312 is a deficient number, since it is larger than the sum of its proper divisors (11281718242838).

11287229581312 is an frugal number, since it uses more digits than its factorization.

11287229581312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511342591 (or 5511342571 counting only the distinct ones).

The product of its digits is 967680, while the sum is 52.

The spelling of 11287229581312 in words is "eleven trillion, two hundred eighty-seven billion, two hundred twenty-nine million, five hundred eighty-one thousand, three hundred twelve".