11311311302213 has 8 divisors (see below), whose sum is σ = 12207836065656. Its totient is φ = 10418561380800.

The previous prime is 11311311302201. The next prime is 11311311302267. The reversal of 11311311302213 is 31220311311311.

It can be written as a sum of positive squares in 4 ways, for example, as 960021757249 + 10351289544964 = 979807^2 + 3217342^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11311311302213 - 2⁸ = 11311311301957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311311305213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943704278 + ... + 943716263.

It is an arithmetic number, because the mean of its divisors is an integer number (1525979508207).

Almost surely, 2^{11311311302213} is an apocalyptic number.

11311311302213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11311311302213 is a deficient number, since it is larger than the sum of its proper divisors (896524763443).

11311311302213 is a wasteful number, since it uses less digits than its factorization.

11311311302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887421015.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 11311311302213 its reverse (31220311311311), we get a palindrome (42531622613524).

The spelling of 11311311302213 in words is "eleven trillion, three hundred eleven billion, three hundred eleven million, three hundred two thousand, two hundred thirteen".