11113213 has 2 divisors, whose sum is σ = 11113214. Its totient is φ = 11113212.

The previous prime is 11113183. The next prime is 11113237. The reversal of 11113213 is 31231111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6260004 + 4853209 = 2502^2 + 2203^2 .

It is a cyclic number.

It is not a de Polignac number, because 11113213 - 2¹⁷ = 10982141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11113193 and 11113202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11113243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556606 + 5556607.

It is an arithmetic number, because the mean of its divisors is an integer number (5556607).

Almost surely, 2^11113213 is an apocalyptic number.

It is an amenable number.

11113213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11113213 is an equidigital number, since it uses as much as digits as its factorization.

11113213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18, while the sum is 13.

The square root of 11113213 is about 3333.6486017575. The cubic root of 11113213 is about 223.1583865437.

Adding to 11113213 its reverse (31231111), we get a palindrome (42344324).

The spelling of 11113213 in words is "eleven million, one hundred thirteen thousand, two hundred thirteen".