21011131321322 has 8 divisors (see below), whose sum is σ = 31605979410756. Its totient is φ = 10475804851072.

The previous prime is 21011131321307. The next prime is 21011131321391. The reversal of 21011131321322 is 22312313111012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20002996845841 + 1008134475481 = 4472471^2 + 1004059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21011131321322² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14880403913 + ... + 14880405324.

Almost surely, 2^{21011131321322} is an apocalyptic number.

21011131321322 is a deficient number, since it is larger than the sum of its proper divisors (10594848089434).

21011131321322 is a wasteful number, since it uses less digits than its factorization.

21011131321322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29760809592.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 21011131321322 its reverse (22312313111012), we get a palindrome (43323444432334).

The spelling of 21011131321322 in words is "twenty-one trillion, eleven billion, one hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-two".