21002000131333 has 16 divisors (see below), whose sum is σ = 22715081335296. Its totient is φ = 19302916976640.

The previous prime is 21002000131303. The next prime is 21002000131379. The reversal of 21002000131333 is 33313100020012.

It is a cyclic number.

It is not a de Polignac number, because 21002000131333 - 2⁹ = 21002000130821 is a prime.

It is a super-2 number, since 2×21002000131333² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21002000131333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002000131303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6642648 + ... + 9280558.

It is an arithmetic number, because the mean of its divisors is an integer number (1419692583456).

Almost surely, 2^{21002000131333} is an apocalyptic number.

It is an amenable number.

21002000131333 is a deficient number, since it is larger than the sum of its proper divisors (1713081203963).

21002000131333 is a wasteful number, since it uses less digits than its factorization.

21002000131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640564.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21002000131333 its reverse (33313100020012), we get a palindrome (54315100151345).

The spelling of 21002000131333 in words is "twenty-one trillion, two billion, one hundred thirty-one thousand, three hundred thirty-three".