2121341333 has 4 divisors (see below), whose sum is σ = 2122466220. Its totient is φ = 2120216448.

The previous prime is 2121341303. The next prime is 2121341347. The reversal of 2121341333 is 3331431212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 680531569 + 1440809764 = 26087^2 + 37958^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121341333 - 2¹⁶ = 2121275797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121341299 and 2121341308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121341303) 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 3 ways as a sum of consecutive naturals, for example, 559610 + ... + 563387.

It is an arithmetic number, because the mean of its divisors is an integer number (530616555).

Almost surely, 2^2121341333 is an apocalyptic number.

It is an amenable number.

2121341333 is a deficient number, since it is larger than the sum of its proper divisors (1124887).

2121341333 is a wasteful number, since it uses less digits than its factorization.

2121341333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124886.

The product of its digits is 1296, while the sum is 23.

The square root of 2121341333 is about 46058.0213752176. The cubic root of 2121341333 is about 1284.9025312274.

Adding to 2121341333 its reverse (3331431212), we get a palindrome (5452772545).

The spelling of 2121341333 in words is "two billion, one hundred twenty-one million, three hundred forty-one thousand, three hundred thirty-three".