2121333323 has 4 divisors (see below), whose sum is σ = 2121491640. Its totient is φ = 2121175008.

The previous prime is 2121333301. The next prime is 2121333329. The reversal of 2121333323 is 3233331212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121333323 - 2²⁴ = 2104556107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121333329) 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, 56990 + ... + 86547.

It is an arithmetic number, because the mean of its divisors is an integer number (530372910).

Almost surely, 2^2121333323 is an apocalyptic number.

2121333323 is a deficient number, since it is larger than the sum of its proper divisors (158317).

2121333323 is a wasteful number, since it uses less digits than its factorization.

2121333323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158316.

The product of its digits is 1944, while the sum is 23.

The square root of 2121333323 is about 46057.9344195981. The cubic root of 2121333323 is about 1284.9009139987.

Adding to 2121333323 its reverse (3233331212), we get a palindrome (5354664535).

The spelling of 2121333323 in words is "two billion, one hundred twenty-one million, three hundred thirty-three thousand, three hundred twenty-three".