11323012013 has 2 divisors, whose sum is σ = 11323012014. Its totient is φ = 11323012012.

The previous prime is 11323012009. The next prime is 11323012021. The reversal of 11323012013 is 31021032311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6414888649 + 4908123364 = 80093^2 + 70058^2 .

It is an emirp because it is prime and its reverse (31021032311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11323012013 - 2² = 11323012009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11323011982 and 11323012000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11323012073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5661506006 + 5661506007.

It is an arithmetic number, because the mean of its divisors is an integer number (5661506007).

Almost surely, 2^11323012013 is an apocalyptic number.

It is an amenable number.

11323012013 is a deficient number, since it is larger than the sum of its proper divisors (1).

11323012013 is an equidigital number, since it uses as much as digits as its factorization.

11323012013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11323012013 its reverse (31021032311), we get a palindrome (42344044324).

The spelling of 11323012013 in words is "eleven billion, three hundred twenty-three million, twelve thousand, thirteen".