20113223321 has 8 divisors (see below), whose sum is σ = 20535668160. Its totient is φ = 19694374128.

The previous prime is 20113223293. The next prime is 20113223323. The reversal of 20113223321 is 12332231102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20113223321 - 2¹⁸ = 20112961177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113223293 and 20113223302.

It is not an unprimeable number, because it can be changed into a prime (20113223323) 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, 887606 + ... + 909983.

It is an arithmetic number, because the mean of its divisors is an integer number (2566958520).

Almost surely, 2^20113223321 is an apocalyptic number.

It is an amenable number.

20113223321 is a deficient number, since it is larger than the sum of its proper divisors (422444839).

20113223321 is a wasteful number, since it uses less digits than its factorization.

20113223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797823.

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

Adding to 20113223321 its reverse (12332231102), we get a palindrome (32445454423).

The spelling of 20113223321 in words is "twenty billion, one hundred thirteen million, two hundred twenty-three thousand, three hundred twenty-one".