21020303300213 has 16 divisors (see below), whose sum is σ = 24567113404800. Its totient is φ = 17977977305568.

The previous prime is 21020303300177. The next prime is 21020303300233. The reversal of 21020303300213 is 31200330302012.

It is not a de Polignac number, because 21020303300213 - 2⁶ = 21020303300149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020303300233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66893231 + ... + 67206732.

It is an arithmetic number, because the mean of its divisors is an integer number (1535444587800).

Almost surely, 2^{21020303300213} is an apocalyptic number.

It is an amenable number.

21020303300213 is a deficient number, since it is larger than the sum of its proper divisors (3546810104587).

21020303300213 is an equidigital number, since it uses as much as digits as its factorization.

21020303300213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134100441 (or 134100427 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21020303300213 its reverse (31200330302012), we get a palindrome (52220633602225).

The spelling of 21020303300213 in words is "twenty-one trillion, twenty billion, three hundred three million, three hundred thousand, two hundred thirteen".