11213197 has 2 divisors, whose sum is σ = 11213198. Its totient is φ = 11213196.

The previous prime is 11213177. The next prime is 11213201. The reversal of 11213197 is 79131211.

11213197 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8844676 + 2368521 = 2974^2 + 1539^2 .

It is an emirp because it is prime and its reverse (79131211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11213117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606598 + 5606599.

It is an arithmetic number, because the mean of its divisors is an integer number (5606599).

Almost surely, 2^11213197 is an apocalyptic number.

It is an amenable number.

11213197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213197 is an equidigital number, since it uses as much as digits as its factorization.

11213197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 25.

The square root of 11213197 is about 3348.6112046638. The cubic root of 11213197 is about 223.8256309353.

The spelling of 11213197 in words is "eleven million, two hundred thirteen thousand, one hundred ninety-seven".