11211321101311 has 2 divisors, whose sum is σ = 11211321101312. Its totient is φ = 11211321101310.

The previous prime is 11211321101297. The next prime is 11211321101347. The reversal of 11211321101311 is 11310112311211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11211321101311 - 2¹¹ = 11211321099263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211321101011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605660550655 + 5605660550656.

It is an arithmetic number, because the mean of its divisors is an integer number (5605660550656).

Almost surely, 2^{11211321101311} is an apocalyptic number.

11211321101311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211321101311 is an equidigital number, since it uses as much as digits as its factorization.

11211321101311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 11211321101311 its reverse (11310112311211), we get a palindrome (22521433412522).

The spelling of 11211321101311 in words is "eleven trillion, two hundred eleven billion, three hundred twenty-one million, one hundred one thousand, three hundred eleven".