21002303130220 has 24 divisors (see below), whose sum is σ = 44104944669408. Its totient is φ = 8400900662400.

The previous prime is 21002303130217. The next prime is 21002303130269. The reversal of 21002303130220 is 2203130320012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9136800 + ... + 11202040.

It is an arithmetic number, because the mean of its divisors is an integer number (1837706027892).

Almost surely, 2^{21002303130220} is an apocalyptic number.

21002303130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21002303130220 is an abundant number, since it is smaller than the sum of its proper divisors (23102641539188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21002303130220 is a wasteful number, since it uses less digits than its factorization.

21002303130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573721 (or 2573719 counting only the distinct ones).

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

Adding to 21002303130220 its reverse (2203130320012), we get a palindrome (23205433450232).

The spelling of 21002303130220 in words is "twenty-one trillion, two billion, three hundred three million, one hundred thirty thousand, two hundred twenty".