20123312323 has 8 divisors (see below), whose sum is σ = 20160342720. Its totient is φ = 20086308480.

The previous prime is 20123312311. The next prime is 20123312347. The reversal of 20123312323 is 32321332102.

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 20123312323 - 2²¹ = 20121215171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20123312294 and 20123312303.

It is not an unprimeable number, because it can be changed into a prime (20123312353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2078113 + ... + 2087773.

It is an arithmetic number, because the mean of its divisors is an integer number (2520042840).

Almost surely, 2^20123312323 is an apocalyptic number.

20123312323 is a deficient number, since it is larger than the sum of its proper divisors (37030397).

20123312323 is an equidigital number, since it uses as much as digits as its factorization.

20123312323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13277.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20123312323 its reverse (32321332102), we get a palindrome (52444644425).

The spelling of 20123312323 in words is "twenty billion, one hundred twenty-three million, three hundred twelve thousand, three hundred twenty-three".