11312213 has 8 divisors (see below), whose sum is σ = 12525600. Its totient is φ = 10129680.

The previous prime is 11312209. The next prime is 11312221. The reversal of 11312213 is 31221311.

11312213 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 not a de Polignac number, because 11312213 - 2² = 11312209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312513) 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, 6938 + ... + 8411.

It is an arithmetic number, because the mean of its divisors is an integer number (1565700).

Almost surely, 2^11312213 is an apocalyptic number.

It is an amenable number.

11312213 is a deficient number, since it is larger than the sum of its proper divisors (1213387).

11312213 is a wasteful number, since it uses less digits than its factorization.

11312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15427.

The product of its digits is 36, while the sum is 14.

The square root of 11312213 is about 3363.3633464138. The cubic root of 11312213 is about 224.4825177399.

Adding to 11312213 its reverse (31221311), we get a palindrome (42533524).

It can be divided in two parts, 11 and 312213, that multiplied together give a palindrome (3434343).

The spelling of 11312213 in words is "eleven million, three hundred twelve thousand, two hundred thirteen".