21022030303 has 2 divisors, whose sum is σ = 21022030304. Its totient is φ = 21022030302.

The previous prime is 21022030277. The next prime is 21022030319. The reversal of 21022030303 is 30303022012.

It is an a-pointer prime, because the next prime (21022030319) can be obtained adding 21022030303 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21022030303 is a prime.

21022030303 is a modest number, since divided by 30303 gives 21022 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21022030373) 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, 10511015151 + 10511015152.

It is an arithmetic number, because the mean of its divisors is an integer number (10511015152).

Almost surely, 2^21022030303 is an apocalyptic number.

21022030303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022030303 is an equidigital number, since it uses as much as digits as its factorization.

21022030303 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 16.

Adding to 21022030303 its reverse (30303022012), we get a palindrome (51325052315).

The spelling of 21022030303 in words is "twenty-one billion, twenty-two million, thirty thousand, three hundred three".