11312008 has 8 divisors (see below), whose sum is σ = 21210030. Its totient is φ = 5656000.

The previous prime is 11311999. The next prime is 11312009. The reversal of 11312008 is 80021311.

It can be written as a sum of positive squares in only one way, i.e., 10355524 + 956484 = 3218^2 + 978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 11311982 and 11312000.

It is not an unprimeable number, because it can be changed into a prime (11312009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706993 + ... + 707008.

Almost surely, 2^11312008 is an apocalyptic number.

It is an amenable number.

11312008 is a deficient number, since it is larger than the sum of its proper divisors (9898022).

11312008 is a wasteful number, since it uses less digits than its factorization.

11312008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414007 (or 1414003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11312008 is about 3363.3328708292. The cubic root of 11312008 is about 224.4811617072.

Adding to 11312008 its reverse (80021311), we get a palindrome (91333319).

It can be divided in two parts, 113 and 12008, that added together give a palindrome (12121).

The spelling of 11312008 in words is "eleven million, three hundred twelve thousand, eight".