21011303100330 has 24 divisors (see below), whose sum is σ = 54629388061092. Its totient is φ = 5603014160064.

The previous prime is 21011303100289. The next prime is 21011303100341. The reversal of 21011303100330 is 3300130311012.

It is a happy number.

21011303100330 is a `hidden beast` number, since 2 + 10 + 1 + 13 + 0 + 310 + 0 + 330 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18583867431801 + 2427435668529 = 4310901^2 + 1558023^2 .

It is a super-2 number, since 2×21011303100330² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116729461579 + ... + 116729461758.

Almost surely, 2^{21011303100330} is an apocalyptic number.

21011303100330 is an abundant number, since it is smaller than the sum of its proper divisors (33618084960762).

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

21011303100330 is a wasteful number, since it uses less digits than its factorization.

21011303100330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233458923350 (or 233458923347 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 21011303100330 its reverse (3300130311012), we get a palindrome (24311433411342).

The spelling of 21011303100330 in words is "twenty-one trillion, eleven billion, three hundred three million, one hundred thousand, three hundred thirty".