11885213 has 2 divisors, whose sum is σ = 11885214. Its totient is φ = 11885212.

The previous prime is 11885201. The next prime is 11885221. The reversal of 11885213 is 31258811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11303044 + 582169 = 3362^2 + 763^2 .

It is an emirp because it is prime and its reverse (31258811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11885213 - 2¹² = 11881117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11885113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5942606 + 5942607.

It is an arithmetic number, because the mean of its divisors is an integer number (5942607).

Almost surely, 2^11885213 is an apocalyptic number.

It is an amenable number.

11885213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11885213 is an equidigital number, since it uses as much as digits as its factorization.

11885213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 29.

The square root of 11885213 is about 3447.4937273329. The cubic root of 11885213 is about 228.2105178345.

The spelling of 11885213 in words is "eleven million, eight hundred eighty-five thousand, two hundred thirteen".