11331131320213 has 2 divisors, whose sum is σ = 11331131320214. Its totient is φ = 11331131320212.

The previous prime is 11331131320199. The next prime is 11331131320237. The reversal of 11331131320213 is 31202313113311.

11331131320213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6073548304849 + 5257583015364 = 2464457^2 + 2292942^2 .

It is an emirp because it is prime and its reverse (31202313113311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331131320213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331131320253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665565660106 + 5665565660107.

It is an arithmetic number, because the mean of its divisors is an integer number (5665565660107).

Almost surely, 2^{11331131320213} is an apocalyptic number.

It is an amenable number.

11331131320213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331131320213 is an equidigital number, since it uses as much as digits as its factorization.

11331131320213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 11331131320213 its reverse (31202313113311), we get a palindrome (42533444433524).

The spelling of 11331131320213 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred twenty thousand, two hundred thirteen".