11123213110013 has 4 divisors (see below), whose sum is σ = 11149634044188. Its totient is φ = 11096792175840.

The previous prime is 11123213109979. The next prime is 11123213110039. The reversal of 11123213110013 is 31001131232111.

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 796900792249 + 10326312317764 = 892693^2 + 3213458^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123213110013 - 2¹⁰ = 11123213108989 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 (11123213110063) 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, 13210466456 + ... + 13210467297.

It is an arithmetic number, because the mean of its divisors is an integer number (2787408511047).

Almost surely, 2^{11123213110013} is an apocalyptic number.

It is an amenable number.

11123213110013 is a deficient number, since it is larger than the sum of its proper divisors (26420934175).

11123213110013 is an equidigital number, since it uses as much as digits as its factorization.

11123213110013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26420934174.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11123213110013 its reverse (31001131232111), we get a palindrome (42124344342124).

The spelling of 11123213110013 in words is "eleven trillion, one hundred twenty-three billion, two hundred thirteen million, one hundred ten thousand, thirteen".