10003444021 has 2 divisors, whose sum is σ = 10003444022. Its totient is φ = 10003444020.

The previous prime is 10003444001. The next prime is 10003444039. The reversal of 10003444021 is 12044430001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9724720996 + 278723025 = 98614^2 + 16695^2 .

It is a cyclic number.

It is not a de Polignac number, because 10003444021 - 2¹³ = 10003435829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10003444021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10003444001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001722010 + 5001722011.

It is an arithmetic number, because the mean of its divisors is an integer number (5001722011).

Almost surely, 2^10003444021 is an apocalyptic number.

It is an amenable number.

10003444021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10003444021 is an equidigital number, since it uses as much as digits as its factorization.

10003444021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 10003444021 its reverse (12044430001), we get a palindrome (22047874022).

The spelling of 10003444021 in words is "ten billion, three million, four hundred forty-four thousand, twenty-one".