20304310423 has 8 divisors (see below), whose sum is σ = 21380710320. Its totient is φ = 19228685760.

The previous prime is 20304310409. The next prime is 20304310457. The reversal of 20304310423 is 32401340302.

It is a happy number.

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 20304310423 - 2¹³ = 20304302231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20304310394 and 20304310403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304310463) 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, 139648 + ... + 245173.

It is an arithmetic number, because the mean of its divisors is an integer number (2672588790).

Almost surely, 2^20304310423 is an apocalyptic number.

20304310423 is a deficient number, since it is larger than the sum of its proper divisors (1076399897).

20304310423 is a wasteful number, since it uses less digits than its factorization.

20304310423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387617.

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

Adding to 20304310423 its reverse (32401340302), we get a palindrome (52705650725).

The spelling of 20304310423 in words is "twenty billion, three hundred four million, three hundred ten thousand, four hundred twenty-three".