11101213 has 4 divisors (see below), whose sum is σ = 11211228. Its totient is φ = 10991200.

The previous prime is 11101199. The next prime is 11101217. The reversal of 11101213 is 31210111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31210111 = 101 ⋅309011.

It can be written as a sum of positive squares in 2 ways, for example, as 7634169 + 3467044 = 2763^2 + 1862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11101213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101217) 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, 54856 + ... + 55057.

It is an arithmetic number, because the mean of its divisors is an integer number (2802807).

Almost surely, 2^11101213 is an apocalyptic number.

It is an amenable number.

11101213 is a deficient number, since it is larger than the sum of its proper divisors (110015).

11101213 is a wasteful number, since it uses less digits than its factorization.

11101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110014.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 11101213 is about 3331.8482858618. The cubic root of 11101213 is about 223.0780357913.

Adding to 11101213 its reverse (31210111), we get a palindrome (42311324).

The spelling of 11101213 in words is "eleven million, one hundred one thousand, two hundred thirteen".