11311303212313 has 4 divisors (see below), whose sum is σ = 12181403459428. Its totient is φ = 10441202965200.

The previous prime is 11311303212301. The next prime is 11311303212367. The reversal of 11311303212313 is 31321230311311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3668002531209 + 7643300681104 = 1915203^2 + 2764652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11311303212313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311303212373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435050123538 + ... + 435050123563.

It is an arithmetic number, because the mean of its divisors is an integer number (3045350864857).

Almost surely, 2^{11311303212313} is an apocalyptic number.

11311303212313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11311303212313 is a deficient number, since it is larger than the sum of its proper divisors (870100247115).

11311303212313 is an equidigital number, since it uses as much as digits as its factorization.

11311303212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870100247114.

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

Adding to 11311303212313 its reverse (31321230311311), we get a palindrome (42632533523624).

The spelling of 11311303212313 in words is "eleven trillion, three hundred eleven billion, three hundred three million, two hundred twelve thousand, three hundred thirteen".