209303730210 has 32 divisors (see below), whose sum is σ = 531877715712. Its totient is φ = 52531132160.

The previous prime is 209303730169. The next prime is 209303730217. The reversal of 209303730210 is 12037303902.

209303730210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (209303730217) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 205199226 + ... + 205200245.

It is an arithmetic number, because the mean of its divisors is an integer number (16621178616).

Almost surely, 2^209303730210 is an apocalyptic number.

209303730210 is an abundant number, since it is smaller than the sum of its proper divisors (322573985502).

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

209303730210 is a wasteful number, since it uses less digits than its factorization.

209303730210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410399498.

The product of its (nonzero) digits is 6804, while the sum is 30.

The spelling of 209303730210 in words is "two hundred nine billion, three hundred three million, seven hundred thirty thousand, two hundred ten".