11213616 has 20 divisors (see below), whose sum is σ = 28968632. Its totient is φ = 3737856.

The previous prime is 11213611. The next prime is 11213617. The reversal of 11213616 is 61631211.

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 = 11213592 and 11213601.

It is not an unprimeable number, because it can be changed into a prime (11213611) 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 in 3 ways as a sum of consecutive naturals, for example, 116761 + ... + 116856.

Almost surely, 2^11213616 is an apocalyptic number.

11213616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11213616 is an abundant number, since it is smaller than the sum of its proper divisors (17755016).

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

11213616 is a wasteful number, since it uses less digits than its factorization.

11213616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233628 (or 233622 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 11213616 is about 3348.6737673294. The cubic root of 11213616 is about 223.8284187745.

Adding to 11213616 its reverse (61631211), we get a palindrome (72844827).

The spelling of 11213616 in words is "eleven million, two hundred thirteen thousand, six hundred sixteen".