2133321005 has 4 divisors (see below), whose sum is σ = 2559985212. Its totient is φ = 1706656800.

The previous prime is 2133320993. The next prime is 2133321013. The reversal of 2133321005 is 5001233312.

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 317623684 + 1815697321 = 17822^2 + 42611^2 .

It is not a de Polignac number, because 2133321005 - 2¹⁸ = 2133058861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213332096 + ... + 213332105.

It is an arithmetic number, because the mean of its divisors is an integer number (639996303).

Almost surely, 2^2133321005 is an apocalyptic number.

It is an amenable number.

2133321005 is a deficient number, since it is larger than the sum of its proper divisors (426664207).

2133321005 is an equidigital number, since it uses as much as digits as its factorization.

2133321005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426664206.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2133321005 is about 46187.8880768541. Note that the first 3 decimals coincide. The cubic root of 2133321005 is about 1287.3166997038.

Adding to 2133321005 its reverse (5001233312), we get a palindrome (7134554317).

The spelling of 2133321005 in words is "two billion, one hundred thirty-three million, three hundred twenty-one thousand, five".