11003073821 has 2 divisors, whose sum is σ = 11003073822. Its totient is φ = 11003073820.

The previous prime is 11003073797. The next prime is 11003073839. The reversal of 11003073821 is 12837030011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7794417796 + 3208656025 = 88286^2 + 56645^2 .

It is a cyclic number.

It is not a de Polignac number, because 11003073821 - 2¹⁰ = 11003072797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11003073871) 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, 5501536910 + 5501536911.

It is an arithmetic number, because the mean of its divisors is an integer number (5501536911).

Almost surely, 2^11003073821 is an apocalyptic number.

It is an amenable number.

11003073821 is a deficient number, since it is larger than the sum of its proper divisors (1).

11003073821 is an equidigital number, since it uses as much as digits as its factorization.

11003073821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 11003073821 in words is "eleven billion, three million, seventy-three thousand, eight hundred twenty-one".