11311021343 has 2 divisors, whose sum is σ = 11311021344. Its totient is φ = 11311021342.

The previous prime is 11311021333. The next prime is 11311021357. The reversal of 11311021343 is 34312011311.

11311021343 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 is an emirp because it is prime and its reverse (34312011311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11311021343 - 2⁴ = 11311021327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11311021333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655510671 + 5655510672.

It is an arithmetic number, because the mean of its divisors is an integer number (5655510672).

Almost surely, 2^11311021343 is an apocalyptic number.

11311021343 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311021343 is an equidigital number, since it uses as much as digits as its factorization.

11311021343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11311021343 its reverse (34312011311), we get a palindrome (45623032654).

The spelling of 11311021343 in words is "eleven billion, three hundred eleven million, twenty-one thousand, three hundred forty-three".