2133001321 has 16 divisors (see below), whose sum is σ = 2352365568. Its totient is φ = 1917997200.

The previous prime is 2133001267. The next prime is 2133001333. The reversal of 2133001321 is 1231003312.

It is a cyclic number.

It is not a de Polignac number, because 2133001321 - 2⁷ = 2133001193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2133001295 and 2133001304.

It is not an unprimeable number, because it can be changed into a prime (2133001721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384856 + ... + 390358.

It is an arithmetic number, because the mean of its divisors is an integer number (147022848).

Almost surely, 2^2133001321 is an apocalyptic number.

It is an amenable number.

2133001321 is a deficient number, since it is larger than the sum of its proper divisors (219364247).

2133001321 is a wasteful number, since it uses less digits than its factorization.

2133001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2133001321 is about 46184.4272563816. The cubic root of 2133001321 is about 1287.2523938462.

Adding to 2133001321 its reverse (1231003312), we get a palindrome (3364004633).

The spelling of 2133001321 in words is "two billion, one hundred thirty-three million, one thousand, three hundred twenty-one".