20321333243 has 8 divisors (see below), whose sum is σ = 20897967600. Its totient is φ = 19752439168.

The previous prime is 20321333233. The next prime is 20321333269. The reversal of 20321333243 is 34233312302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20321333243 - 2⁸ = 20321332987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321333233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929746 + ... + 1940247.

It is an arithmetic number, because the mean of its divisors is an integer number (2612245950).

Almost surely, 2^20321333243 is an apocalyptic number.

20321333243 is a deficient number, since it is larger than the sum of its proper divisors (576634357).

20321333243 is an equidigital number, since it uses as much as digits as its factorization.

20321333243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870141.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20321333243 its reverse (34233312302), we get a palindrome (54554645545).

The spelling of 20321333243 in words is "twenty billion, three hundred twenty-one million, three hundred thirty-three thousand, two hundred forty-three".