11123311310213 has 4 divisors (see below), whose sum is σ = 11125934118348. Its totient is φ = 11120688502080.

The previous prime is 11123311310203. The next prime is 11123311310273. The reversal of 11123311310213 is 31201311332111.

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 10407217944484 + 716093365729 = 3226022^2 + 846223^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123311310213 - 2⁶ = 11123311310149 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 (11123311310203) 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, 1311397706 + ... + 1311406187.

It is an arithmetic number, because the mean of its divisors is an integer number (2781483529587).

Almost surely, 2^{11123311310213} is an apocalyptic number.

It is an amenable number.

11123311310213 is a deficient number, since it is larger than the sum of its proper divisors (2622808135).

11123311310213 is an equidigital number, since it uses as much as digits as its factorization.

11123311310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622808134.

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

Adding to 11123311310213 its reverse (31201311332111), we get a palindrome (42324622642324).

The spelling of 11123311310213 in words is "eleven trillion, one hundred twenty-three billion, three hundred eleven million, three hundred ten thousand, two hundred thirteen".