20324303123 has 4 divisors (see below), whose sum is σ = 20349364728. Its totient is φ = 20299241520.

The previous prime is 20324303099. The next prime is 20324303143. The reversal of 20324303123 is 32130342302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20324303123 - 2¹⁰ = 20324302099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20324303143) 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, 12529586 + ... + 12531207.

It is an arithmetic number, because the mean of its divisors is an integer number (5087341182).

Almost surely, 2^20324303123 is an apocalyptic number.

20324303123 is a deficient number, since it is larger than the sum of its proper divisors (25061605).

20324303123 is an equidigital number, since it uses as much as digits as its factorization.

20324303123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25061604.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20324303123 its reverse (32130342302), we get a palindrome (52454645425).

The spelling of 20324303123 in words is "twenty billion, three hundred twenty-four million, three hundred three thousand, one hundred twenty-three".