2133323232121 has 2 divisors, whose sum is σ = 2133323232122. Its totient is φ = 2133323232120.

The previous prime is 2133323232119. The next prime is 2133323232151. The reversal of 2133323232121 is 1212323233312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1080778556025 + 1052544676096 = 1039605^2 + 1025936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133323232121 - 2¹ = 2133323232119 is a prime.

Together with 2133323232119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2133323232121.

It is not a weakly prime, because it can be changed into another prime (2133323232101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066661616060 + 1066661616061.

It is an arithmetic number, because the mean of its divisors is an integer number (1066661616061).

Almost surely, 2^{2133323232121} is an apocalyptic number.

It is an amenable number.

2133323232121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133323232121 is an equidigital number, since it uses as much as digits as its factorization.

2133323232121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 28.

Adding to 2133323232121 its reverse (1212323233312), we get a palindrome (3345646465433).

It can be divided in two parts, 2133323 and 232121, that added together give a square (2365444 = 1538²).

The spelling of 2133323232121 in words is "two trillion, one hundred thirty-three billion, three hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty-one".