20231223000 has 128 divisors (see below), whose sum is σ = 63250200000. Its totient is φ = 5383987200.

The previous prime is 20231222989. The next prime is 20231223011. The reversal of 20231223000 is 32213202.

It is an interprime number because it is at equal distance from previous prime (20231222989) and next prime (20231223011).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1520376 + ... + 1533624.

Almost surely, 2^20231223000 is an apocalyptic number.

20231223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31625100000).

20231223000 is an abundant number, since it is smaller than the sum of its proper divisors (43018977000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20231223000 is a wasteful number, since it uses less digits than its factorization.

20231223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13782 (or 13768 counting only the distinct ones).

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

Adding to 20231223000 its reverse (32213202), we get a palindrome (20263436202).

The spelling of 20231223000 in words is "twenty billion, two hundred thirty-one million, two hundred twenty-three thousand".