20323223000 has 128 divisors (see below), whose sum is σ = 48856953600. Its totient is φ = 7909056000.

The previous prime is 20323222987. The next prime is 20323223033. The reversal of 20323223000 is 32232302.

It is a self number, because there is not a number n which added to its sum of digits gives 20323223000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8505806 + ... + 8508194.

It is an arithmetic number, because the mean of its divisors is an integer number (381694950).

Almost surely, 2^20323223000 is an apocalyptic number.

20323223000 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 20323223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24428476800).

20323223000 is an abundant number, since it is smaller than the sum of its proper divisors (28533730600).

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

20323223000 is a wasteful number, since it uses less digits than its factorization.

20323223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638 (or 2624 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20323223000 its reverse (32232302), we get a palindrome (20355455302).

The spelling of 20323223000 in words is "twenty billion, three hundred twenty-three million, two hundred twenty-three thousand".