11000303381 has 2 divisors, whose sum is σ = 11000303382. Its totient is φ = 11000303380.

The previous prime is 11000303323. The next prime is 11000303383. The reversal of 11000303381 is 18330300011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10810800625 + 189502756 = 103975^2 + 13766^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000303381 - 2¹⁸ = 11000041237 is a prime.

It is a super-3 number, since 3×11000303381³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 11000303383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000303383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500151690 + 5500151691.

It is an arithmetic number, because the mean of its divisors is an integer number (5500151691).

Almost surely, 2^11000303381 is an apocalyptic number.

It is an amenable number.

11000303381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000303381 is an equidigital number, since it uses as much as digits as its factorization.

11000303381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11000303381 its reverse (18330300011), we get a palindrome (29330603392).

The spelling of 11000303381 in words is "eleven billion, three hundred three thousand, three hundred eighty-one".