21241303003 has 2 divisors, whose sum is σ = 21241303004. Its totient is φ = 21241303002.

The previous prime is 21241302997. The next prime is 21241303019. The reversal of 21241303003 is 30030314212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21241303003 is a prime.

It is not a weakly prime, because it can be changed into another prime (21241303033) 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, 10620651501 + 10620651502.

It is an arithmetic number, because the mean of its divisors is an integer number (10620651502).

Almost surely, 2^21241303003 is an apocalyptic number.

21241303003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21241303003 is an equidigital number, since it uses as much as digits as its factorization.

21241303003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21241303003 its reverse (30030314212), we get a palindrome (51271617215).

The spelling of 21241303003 in words is "twenty-one billion, two hundred forty-one million, three hundred three thousand, three".