221303420003 has 2 divisors, whose sum is σ = 221303420004. Its totient is φ = 221303420002.

The previous prime is 221303419993. The next prime is 221303420011. The reversal of 221303420003 is 300024303122.

221303420003 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 is a cyclic number.

It is not a de Polignac number, because 221303420003 - 2¹⁴ = 221303403619 is a prime.

It is not a weakly prime, because it can be changed into another prime (221303422003) 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, 110651710001 + 110651710002.

It is an arithmetic number, because the mean of its divisors is an integer number (110651710002).

Almost surely, 2^221303420003 is an apocalyptic number.

221303420003 is a deficient number, since it is larger than the sum of its proper divisors (1).

221303420003 is an equidigital number, since it uses as much as digits as its factorization.

221303420003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 221303420003 its reverse (300024303122), we get a palindrome (521327723125).

The spelling of 221303420003 in words is "two hundred twenty-one billion, three hundred three million, four hundred twenty thousand, three".