210013021312 has 32 divisors (see below), whose sum is σ = 442996221420. Its totient is φ = 98829656064.

The previous prime is 210013021303. The next prime is 210013021313. The reversal of 210013021312 is 213120310012.

It can be written as a sum of positive squares in 2 ways, for example, as 202593610816 + 7419410496 = 450104^2 + 86136^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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

It is not an unprimeable number, because it can be changed into a prime (210013021313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48254493 + ... + 48258844.

Almost surely, 2^210013021312 is an apocalyptic number.

It is an amenable number.

210013021312 is an abundant number, since it is smaller than the sum of its proper divisors (232983200108).

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

210013021312 is an equidigital number, since it uses as much as digits as its factorization.

210013021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96513368 (or 96513356 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 210013021312 its reverse (213120310012), we get a palindrome (423133331324).

The spelling of 210013021312 in words is "two hundred ten billion, thirteen million, twenty-one thousand, three hundred twelve".