11301320021 has 2 divisors, whose sum is σ = 11301320022. Its totient is φ = 11301320020.

The previous prime is 11301320003. The next prime is 11301320033. The reversal of 11301320021 is 12002310311.

11301320021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11060728900 + 240591121 = 105170^2 + 15511^2 .

It is a cyclic number.

It is not a de Polignac number, because 11301320021 - 2¹⁸ = 11301057877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11301319978 and 11301320005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11301320521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5650660010 + 5650660011.

It is an arithmetic number, because the mean of its divisors is an integer number (5650660011).

Almost surely, 2^11301320021 is an apocalyptic number.

It is an amenable number.

11301320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11301320021 is an equidigital number, since it uses as much as digits as its factorization.

11301320021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11301320021 its reverse (12002310311), we get a palindrome (23303630332).

The spelling of 11301320021 in words is "eleven billion, three hundred one million, three hundred twenty thousand, twenty-one".