20232223 has 4 divisors (see below), whose sum is σ = 22071528. Its totient is φ = 18392920.

The previous prime is 20232211. The next prime is 20232239. The reversal of 20232223 is 32223202.

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 20232223 - 2¹³ = 20224031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20232197 and 20232206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919636 + ... + 919657.

It is an arithmetic number, because the mean of its divisors is an integer number (5517882).

Almost surely, 2^20232223 is an apocalyptic number.

20232223 is a deficient number, since it is larger than the sum of its proper divisors (1839305).

20232223 is a wasteful number, since it uses less digits than its factorization.

20232223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839304.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20232223 is about 4498.0243440871. The cubic root of 20232223 is about 272.4883051963.

Adding to 20232223 its reverse (32223202), we get a palindrome (52455425).

The spelling of 20232223 in words is "twenty million, two hundred thirty-two thousand, two hundred twenty-three".