11151213 has 4 divisors (see below), whose sum is σ = 14868288. Its totient is φ = 7434140.

The previous prime is 11151209. The next prime is 11151241. The reversal of 11151213 is 31215111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11151213 - 2² = 11151209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11151192 and 11151201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151293) 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, 1858533 + ... + 1858538.

It is an arithmetic number, because the mean of its divisors is an integer number (3717072).

Almost surely, 2^11151213 is an apocalyptic number.

It is an amenable number.

11151213 is a deficient number, since it is larger than the sum of its proper divisors (3717075).

11151213 is an equidigital number, since it uses as much as digits as its factorization.

11151213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717074.

The product of its digits is 30, while the sum is 15.

The square root of 11151213 is about 3339.3431988941. The cubic root of 11151213 is about 223.4124496310.

Adding to 11151213 its reverse (31215111), we get a palindrome (42366324).

The spelling of 11151213 in words is "eleven million, one hundred fifty-one thousand, two hundred thirteen".