2133243321 has 24 divisors (see below), whose sum is σ = 3134419872. Its totient is φ = 1279872000.

The previous prime is 2133243319. The next prime is 2133243361. The reversal of 2133243321 is 1233423312.

It is not a de Polignac number, because 2133243321 - 2¹ = 2133243319 is a prime.

It is a super-2 number, since 2×2133243321² = 9101454133182218082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2133243291 and 2133243300.

It is not an unprimeable number, because it can be changed into a prime (2133243311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333465 + ... + 339801.

It is an arithmetic number, because the mean of its divisors is an integer number (130600828).

Almost surely, 2^2133243321 is an apocalyptic number.

It is an amenable number.

2133243321 is a deficient number, since it is larger than the sum of its proper divisors (1001176551).

2133243321 is a wasteful number, since it uses less digits than its factorization.

2133243321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6553 (or 6452 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 2133243321 is about 46187.0471127999. The cubic root of 2133243321 is about 1287.3010738128.

Adding to 2133243321 its reverse (1233423312), we get a palindrome (3366666633).

Subtracting from 2133243321 its reverse (1233423312), we obtain a square (899820009 = 29997²).

The spelling of 2133243321 in words is "two billion, one hundred thirty-three million, two hundred forty-three thousand, three hundred twenty-one".