11321043313 has 2 divisors, whose sum is σ = 11321043314. Its totient is φ = 11321043312.

The previous prime is 11321043299. The next prime is 11321043317. The reversal of 11321043313 is 31334012311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10912518369 + 408524944 = 104463^2 + 20212^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321043313 - 2⁵ = 11321043281 is a prime.

It is not a weakly prime, because it can be changed into another prime (11321043317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660521656 + 5660521657.

It is an arithmetic number, because the mean of its divisors is an integer number (5660521657).

Almost surely, 2^11321043313 is an apocalyptic number.

It is an amenable number.

11321043313 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321043313 is an equidigital number, since it uses as much as digits as its factorization.

11321043313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 11321043313 its reverse (31334012311), we get a palindrome (42655055624).

The spelling of 11321043313 in words is "eleven billion, three hundred twenty-one million, forty-three thousand, three hundred thirteen".