210203243300 has 72 divisors (see below), whose sum is σ = 472044657000. Its totient is φ = 81151902720.

The previous prime is 210203243287. The next prime is 210203243321. The reversal of 210203243300 is 3342302012.

It can be written as a sum of positive squares in 12 ways, for example, as 126015060196 + 84188183104 = 354986^2 + 290152^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 8830214 + ... + 8853986.

Almost surely, 2^210203243300 is an apocalyptic number.

210203243300 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 210203243300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236022328500).

210203243300 is an abundant number, since it is smaller than the sum of its proper divisors (261841413700).

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

210203243300 is a wasteful number, since it uses less digits than its factorization.

210203243300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26865 (or 26858 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 210203243300 its reverse (3342302012), we get a palindrome (213545545312).

The spelling of 210203243300 in words is "two hundred ten billion, two hundred three million, two hundred forty-three thousand, three hundred".