20231223 has 8 divisors (see below), whose sum is σ = 27030000. Its totient is φ = 13459968.

The previous prime is 20231203. The next prime is 20231243. The reversal of 20231223 is 32213202.

It is an interprime number because it is at equal distance from previous prime (20231203) and next prime (20231243).

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

It is not a de Polignac number, because 20231223 - 2⁸ = 20230967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231203) 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 7 ways as a sum of consecutive naturals, for example, 5098 + ... + 8151.

It is an arithmetic number, because the mean of its divisors is an integer number (3378750).

Almost surely, 2^20231223 is an apocalyptic number.

20231223 is a deficient number, since it is larger than the sum of its proper divisors (6798777).

20231223 is a wasteful number, since it uses less digits than its factorization.

20231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20231223 is about 4497.9131827993. The cubic root of 20231223 is about 272.4838157770.

Adding to 20231223 its reverse (32213202), we get a palindrome (52444425).

The spelling of 20231223 in words is "twenty million, two hundred thirty-one thousand, two hundred twenty-three".