20231123321 has 8 divisors (see below), whose sum is σ = 20404097640. Its totient is φ = 20058515968.

The previous prime is 20231123261. The next prime is 20231123327. The reversal of 20231123321 is 12332113202.

It can be written as a sum of positive squares in 4 ways, for example, as 8674873321 + 11556250000 = 93139^2 + 107500^2 .

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 20231123321 - 2³⁰ = 19157381497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20231123293 and 20231123302.

It is not an unprimeable number, because it can be changed into a prime (20231123327) 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, 19565 + ... + 202101.

It is an arithmetic number, because the mean of its divisors is an integer number (2550512205).

Almost surely, 2^20231123321 is an apocalyptic number.

It is an amenable number.

20231123321 is a deficient number, since it is larger than the sum of its proper divisors (172974319).

20231123321 is a wasteful number, since it uses less digits than its factorization.

20231123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183483.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20231123321 its reverse (12332113202), we get a palindrome (32563236523).

The spelling of 20231123321 in words is "twenty billion, two hundred thirty-one million, one hundred twenty-three thousand, three hundred twenty-one".