20323102200 has 192 divisors, whose sum is σ = 66957723360. Its totient is φ = 5081579520.

The previous prime is 20323102157. The next prime is 20323102213. The reversal of 20323102200 is 220132302.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20323102200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2821804 + ... + 2828996.

Almost surely, 2^20323102200 is an apocalyptic number.

20323102200 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 20323102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33478861680).

20323102200 is an abundant number, since it is smaller than the sum of its proper divisors (46634621160).

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

20323102200 is a wasteful number, since it uses less digits than its factorization.

20323102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506 (or 7497 counting only the distinct ones).

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

Adding to 20323102200 its reverse (220132302), we get a palindrome (20543234502).

The spelling of 20323102200 in words is "twenty billion, three hundred twenty-three million, one hundred two thousand, two hundred".