20332233230321 has 4 divisors (see below), whose sum is σ = 20332242265572. Its totient is φ = 20332224195072.

The previous prime is 20332233230201. The next prime is 20332233230357. The reversal of 20332233230321 is 12303233223302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17086326540721 + 3245906689600 = 4133561^2 + 1801640^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332233230321 - 2¹⁴ = 20332233213937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20332233232321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843385 + ... + 6637961.

It is an arithmetic number, because the mean of its divisors is an integer number (5083060566393).

Almost surely, 2^{20332233230321} is an apocalyptic number.

It is an amenable number.

20332233230321 is a deficient number, since it is larger than the sum of its proper divisors (9035251).

20332233230321 is an equidigital number, since it uses as much as digits as its factorization.

20332233230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035250.

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 20332233230321 its reverse (12303233223302), we get a palindrome (32635466453623).

The spelling of 20332233230321 in words is "twenty trillion, three hundred thirty-two billion, two hundred thirty-three million, two hundred thirty thousand, three hundred twenty-one".