20323202123 has 24 divisors (see below), whose sum is σ = 25132061520. Its totient is φ = 16339579200.

The previous prime is 20323202111. The next prime is 20323202149. The reversal of 20323202123 is 32120232302.

It is not a de Polignac number, because 20323202123 - 2¹⁴ = 20323185739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20323202095 and 20323202104.

It is not an unprimeable number, because it can be changed into a prime (20323202173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14036 + ... + 202097.

It is an arithmetic number, because the mean of its divisors is an integer number (1047169230).

Almost surely, 2^20323202123 is an apocalyptic number.

20323202123 is a deficient number, since it is larger than the sum of its proper divisors (4808859397).

20323202123 is a wasteful number, since it uses less digits than its factorization.

20323202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216267 (or 216260 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20323202123 its reverse (32120232302), we get a palindrome (52443434425).

The spelling of 20323202123 in words is "twenty billion, three hundred twenty-three million, two hundred two thousand, one hundred twenty-three".