11321220113213 has 2 divisors, whose sum is σ = 11321220113214. Its totient is φ = 11321220113212.

The previous prime is 11321220113191. The next prime is 11321220113237. The reversal of 11321220113213 is 31231102212311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11119837268164 + 201382845049 = 3334642^2 + 448757^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321220113213 - 2⁸ = 11321220112957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321220119213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660610056606 + 5660610056607.

It is an arithmetic number, because the mean of its divisors is an integer number (5660610056607).

Almost surely, 2^{11321220113213} is an apocalyptic number.

It is an amenable number.

11321220113213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321220113213 is an equidigital number, since it uses as much as digits as its factorization.

11321220113213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11321220113213 its reverse (31231102212311), we get a palindrome (42552322325524).

The spelling of 11321220113213 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty million, one hundred thirteen thousand, two hundred thirteen".