21011300003320 has 64 divisors (see below), whose sum is σ = 51584924844000. Its totient is φ = 7638734369280.

The previous prime is 21011300003311. The next prime is 21011300003399. The reversal of 21011300003320 is 2330000311012.

It is a super-2 number, since 2×21011300003320² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21011300003294 and 21011300003303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3495495 + ... + 7364854.

Almost surely, 2^{21011300003320} is an apocalyptic number.

21011300003320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011300003320 is an abundant number, since it is smaller than the sum of its proper divisors (30573624840680).

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

21011300003320 is a wasteful number, since it uses less digits than its factorization.

21011300003320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10864768 (or 10864764 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21011300003320 its reverse (2330000311012), we get a palindrome (23341300314332).

The spelling of 21011300003320 in words is "twenty-one trillion, eleven billion, three hundred million, three thousand, three hundred twenty".