213233330132321 has 4 divisors (see below), whose sum is σ = 213239689834500. Its totient is φ = 213226970430144.

The previous prime is 213233330132257. The next prime is 213233330132323. The reversal of 213233330132321 is 123231033332312.

It is a happy number.

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 81912364797025 + 131320965335296 = 9050545^2 + 11459536^2 .

It is a cyclic number.

It is not a de Polignac number, because 213233330132321 - 2⁶ = 213233330132257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213233330132323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179800796 + ... + 3179867853.

It is an arithmetic number, because the mean of its divisors is an integer number (53309922458625).

Almost surely, 2^{213233330132321} is an apocalyptic number.

It is an amenable number.

213233330132321 is a deficient number, since it is larger than the sum of its proper divisors (6359702179).

213233330132321 is an equidigital number, since it uses as much as digits as its factorization.

213233330132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359702178.

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 213233330132321 its reverse (123231033332312), we get a palindrome (336464363464633).

The spelling of 213233330132321 in words is "two hundred thirteen trillion, two hundred thirty-three billion, three hundred thirty million, one hundred thirty-two thousand, three hundred twenty-one".