20304321223 has 8 divisors (see below), whose sum is σ = 20398083840. Its totient is φ = 20210596920.

The previous prime is 20304321217. The next prime is 20304321269. The reversal of 20304321223 is 32212340302.

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 20304321223 - 2¹³ = 20304313031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20304321194 and 20304321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304321283) 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, 2058738 + ... + 2068576.

It is an arithmetic number, because the mean of its divisors is an integer number (2549760480).

Almost surely, 2^20304321223 is an apocalyptic number.

20304321223 is a deficient number, since it is larger than the sum of its proper divisors (93762617).

20304321223 is an equidigital number, since it uses as much as digits as its factorization.

20304321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19157.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20304321223 its reverse (32212340302), we get a palindrome (52516661525).

The spelling of 20304321223 in words is "twenty billion, three hundred four million, three hundred twenty-one thousand, two hundred twenty-three".