21000311011330 has 64 divisors (see below), whose sum is σ = 43226260116480. Its totient is φ = 7195837881024.

The previous prime is 21000311011289. The next prime is 21000311011331. The reversal of 21000311011330 is 3311011300012.

It is not an unprimeable number, because it can be changed into a prime (21000311011331) by changing a digit.

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, 1147110037 + ... + 1147128343.

It is an arithmetic number, because the mean of its divisors is an integer number (675410314320).

Almost surely, 2^{21000311011330} is an apocalyptic number.

21000311011330 is an abundant number, since it is smaller than the sum of its proper divisors (22225949105150).

21000311011330 is a wasteful number, since it uses less digits than its factorization.

21000311011330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27143.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 21000311011330 its reverse (3311011300012), we get a palindrome (24311322311342).

The spelling of 21000311011330 in words is "twenty-one trillion, three hundred eleven million, eleven thousand, three hundred thirty".