21020002230310 has 64 divisors (see below), whose sum is σ = 41003807169600. Its totient is φ = 7727401930752.

The previous prime is 21020002230299. The next prime is 21020002230323. The reversal of 21020002230310 is 1303220002012.

It is a super-2 number, since 2×21020002230310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28355056 + ... + 29086924.

It is an arithmetic number, because the mean of its divisors is an integer number (640684487025).

Almost surely, 2^{21020002230310} is an apocalyptic number.

21020002230310 is a deficient number, since it is larger than the sum of its proper divisors (19983804939290).

21020002230310 is a wasteful number, since it uses less digits than its factorization.

21020002230310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735865.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21020002230310 its reverse (1303220002012), we get a palindrome (22323222232322).

The spelling of 21020002230310 in words is "twenty-one trillion, twenty billion, two million, two hundred thirty thousand, three hundred ten".