11317212 has 24 divisors (see below), whose sum is σ = 29341200. Its totient is φ = 3772368.

The previous prime is 11317211. The next prime is 11317237. The reversal of 11317212 is 21271311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11317211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52287 + ... + 52502.

It is an arithmetic number, because the mean of its divisors is an integer number (1222550).

Almost surely, 2^11317212 is an apocalyptic number.

11317212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11317212 is an abundant number, since it is smaller than the sum of its proper divisors (18023988).

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

11317212 is a wasteful number, since it uses less digits than its factorization.

11317212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104802 (or 104794 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 11317212 is about 3364.1064192442. The cubic root of 11317212 is about 224.5155800253.

Adding to 11317212 its reverse (21271311), we get a palindrome (32588523).

The spelling of 11317212 in words is "eleven million, three hundred seventeen thousand, two hundred twelve".