11111213 has 8 divisors (see below), whose sum is σ = 11332608. Its totient is φ = 10891584.

The previous prime is 11111209. The next prime is 11111267. The reversal of 11111213 is 31211111.

It is a happy number.

11111213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111213 - 2² = 11111209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11111194 and 11111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111273) 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, 25445 + ... + 25877.

It is an arithmetic number, because the mean of its divisors is an integer number (1416576).

Almost surely, 2^11111213 is an apocalyptic number.

It is an amenable number.

11111213 is a deficient number, since it is larger than the sum of its proper divisors (221395).

11111213 is an equidigital number, since it uses as much as digits as its factorization.

11111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

The product of its digits is 6, while the sum is 11.

The square root of 11111213 is about 3333.3486166316. The cubic root of 11111213 is about 223.1449987698.

Adding to 11111213 its reverse (31211111), we get a palindrome (42322324).

The spelling of 11111213 in words is "eleven million, one hundred eleven thousand, two hundred thirteen".