11211313313 has 4 divisors (see below), whose sum is σ = 11212978308. Its totient is φ = 11209648320.

The previous prime is 11211313297. The next prime is 11211313327. The reversal of 11211313313 is 31331311211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31331311211 = 617 ⋅50780083.

It can be written as a sum of positive squares in 2 ways, for example, as 6242896144 + 4968417169 = 79012^2 + 70487^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211313313 - 2⁴ = 11211313297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211313513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822356 + ... + 835877.

It is an arithmetic number, because the mean of its divisors is an integer number (2803244577).

Almost surely, 2^11211313313 is an apocalyptic number.

It is an amenable number.

11211313313 is a deficient number, since it is larger than the sum of its proper divisors (1664995).

11211313313 is an equidigital number, since it uses as much as digits as its factorization.

11211313313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664994.

The product of its digits is 162, while the sum is 20.

Adding to 11211313313 its reverse (31331311211), we get a palindrome (42542624524).

The spelling of 11211313313 in words is "eleven billion, two hundred eleven million, three hundred thirteen thousand, three hundred thirteen".