2131111211333 has 8 divisors (see below), whose sum is σ = 2295522142200. Its totient is φ = 1966768751808.

The previous prime is 2131111211293. The next prime is 2131111211351. The reversal of 2131111211333 is 3331121111312.

It can be written as a sum of positive squares in 4 ways, for example, as 51611661124 + 2079499550209 = 227182^2 + 1442047^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2131111211333 - 2²⁶ = 2131044102469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131111211299 and 2131111211308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131111111333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17053178 + ... + 17177691.

It is an arithmetic number, because the mean of its divisors is an integer number (286940267775).

Almost surely, 2^{2131111211333} is an apocalyptic number.

It is an amenable number.

2131111211333 is a deficient number, since it is larger than the sum of its proper divisors (164410930867).

2131111211333 is a wasteful number, since it uses less digits than its factorization.

2131111211333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34235671.

The product of its digits is 324, while the sum is 23.

Adding to 2131111211333 its reverse (3331121111312), we get a palindrome (5462232322645).

The spelling of 2131111211333 in words is "two trillion, one hundred thirty-one billion, one hundred eleven million, two hundred eleven thousand, three hundred thirty-three".