11013130021 has 2 divisors, whose sum is σ = 11013130022. Its totient is φ = 11013130020.

The previous prime is 11013130013. The next prime is 11013130049. The reversal of 11013130021 is 12003131011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11006317921 + 6812100 = 104911^2 + 2610^2 .

It is an emirp because it is prime and its reverse (12003131011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11013130021 - 2³ = 11013130013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11013129983 and 11013130010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11013130061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506565010 + 5506565011.

It is an arithmetic number, because the mean of its divisors is an integer number (5506565011).

Almost surely, 2^11013130021 is an apocalyptic number.

It is an amenable number.

11013130021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013130021 is an equidigital number, since it uses as much as digits as its factorization.

11013130021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11013130021 its reverse (12003131011), we get a palindrome (23016261032).

The spelling of 11013130021 in words is "eleven billion, thirteen million, one hundred thirty thousand, twenty-one".