2043133321 has 4 divisors (see below), whose sum is σ = 2163317652. Its totient is φ = 1922948992.

The previous prime is 2043133307. The next prime is 2043133331. The reversal of 2043133321 is 1233313402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1233313402 = 2 ⋅616656701.

It can be written as a sum of positive squares in 2 ways, for example, as 1396143225 + 646990096 = 37365^2 + 25436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043133321 - 2¹³ = 2043125129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2043133292 and 2043133301.

It is not an unprimeable number, because it can be changed into a prime (2043133331) by changing a digit.

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, 60092140 + ... + 60092173.

It is an arithmetic number, because the mean of its divisors is an integer number (540829413).

Almost surely, 2^2043133321 is an apocalyptic number.

It is an amenable number.

2043133321 is a deficient number, since it is larger than the sum of its proper divisors (120184331).

2043133321 is a wasteful number, since it uses less digits than its factorization.

2043133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120184330.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 2043133321 is about 45201.0323001588. The cubic root of 2043133321 is about 1268.9141360091.

Adding to 2043133321 its reverse (1233313402), we get a palindrome (3276446723).

The spelling of 2043133321 in words is "two billion, forty-three million, one hundred thirty-three thousand, three hundred twenty-one".