20323211200 has 84 divisors (see below), whose sum is σ = 50061159720. Its totient is φ = 8120611840.

The previous prime is 20323211179. The next prime is 20323211299. The reversal of 20323211200 is 211232302.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1614531 + ... + 1627069.

Almost surely, 2^20323211200 is an apocalyptic number.

20323211200 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 20323211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25030579860).

20323211200 is an abundant number, since it is smaller than the sum of its proper divisors (29737948520).

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

20323211200 is a wasteful number, since it uses less digits than its factorization.

20323211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13574 (or 13559 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20323211200 its reverse (211232302), we get a palindrome (20534443502).

The spelling of 20323211200 in words is "twenty billion, three hundred twenty-three million, two hundred eleven thousand, two hundred".