11331312 has 20 divisors (see below), whose sum is σ = 29272680. Its totient is φ = 3777088.

The previous prime is 11331311. The next prime is 11331319. The reversal of 11331312 is 21313311.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11331291 and 11331300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331311) 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 3 ways as a sum of consecutive naturals, for example, 117987 + ... + 118082.

It is an arithmetic number, because the mean of its divisors is an integer number (1463634).

Almost surely, 2^11331312 is an apocalyptic number.

11331312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11331312 is an abundant number, since it is smaller than the sum of its proper divisors (17941368).

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

11331312 is a wasteful number, since it uses less digits than its factorization.

11331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236080 (or 236074 counting only the distinct ones).

The product of its digits is 54, while the sum is 15.

The square root of 11331312 is about 3366.2014199985. The cubic root of 11331312 is about 224.6087818933.

Adding to 11331312 its reverse (21313311), we get a palindrome (32644623).

The spelling of 11331312 in words is "eleven million, three hundred thirty-one thousand, three hundred twelve".