20012320200 has 96 divisors (see below), whose sum is σ = 62267621760. Its totient is φ = 5316883200.

The previous prime is 20012320187. The next prime is 20012320241. The reversal of 20012320200 is 202321002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101062 + ... + 224138.

It is an arithmetic number, because the mean of its divisors is an integer number (648621060).

Almost surely, 2^20012320200 is an apocalyptic number.

20012320200 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 20012320200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31133810880).

20012320200 is an abundant number, since it is smaller than the sum of its proper divisors (42255301560).

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

20012320200 is a wasteful number, since it uses less digits than its factorization.

20012320200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123367 (or 123358 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20012320200 its reverse (202321002), we get a palindrome (20214641202).

The spelling of 20012320200 in words is "twenty billion, twelve million, three hundred twenty thousand, two hundred".