11212303213 has 2 divisors, whose sum is σ = 11212303214. Its totient is φ = 11212303212.

The previous prime is 11212303181. The next prime is 11212303241. The reversal of 11212303213 is 31230321211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7121165769 + 4091137444 = 84387^2 + 63962^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212303213 - 2⁵ = 11212303181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11212303283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606151606 + 5606151607.

It is an arithmetic number, because the mean of its divisors is an integer number (5606151607).

Almost surely, 2^11212303213 is an apocalyptic number.

It is an amenable number.

11212303213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212303213 is an equidigital number, since it uses as much as digits as its factorization.

11212303213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11212303213 its reverse (31230321211), we get a palindrome (42442624424).

The spelling of 11212303213 in words is "eleven billion, two hundred twelve million, three hundred three thousand, two hundred thirteen".