210232001321 has 8 divisors (see below), whose sum is σ = 224092542600. Its totient is φ = 196537454848.

The previous prime is 210232001279. The next prime is 210232001341. The reversal of 210232001321 is 123100232012.

210232001321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 61139485696 + 149092515625 = 247264^2 + 386125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210232001321 - 2²² = 210227807017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210232001321.

It is not an unprimeable number, because it can be changed into a prime (210232001341) 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 7 ways as a sum of consecutive naturals, for example, 41496086 + ... + 41501151.

It is an arithmetic number, because the mean of its divisors is an integer number (28011567825).

Almost surely, 2^210232001321 is an apocalyptic number.

It is an amenable number.

210232001321 is a deficient number, since it is larger than the sum of its proper divisors (13860541279).

210232001321 is a wasteful number, since it uses less digits than its factorization.

210232001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82997403.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210232001321 its reverse (123100232012), we get a palindrome (333332233333).

The spelling of 210232001321 in words is "two hundred ten billion, two hundred thirty-two million, one thousand, three hundred twenty-one".