201321030 has 48 divisors (see below), whose sum is σ = 492665040. Its totient is φ = 52650624.

The previous prime is 201321023. The next prime is 201321041. The reversal of 201321030 is 30123102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201320997 and 201321015.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 83076 + ... + 85464.

It is an arithmetic number, because the mean of its divisors is an integer number (10263855).

Almost surely, 2^201321030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201321030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246332520).

201321030 is an abundant number, since it is smaller than the sum of its proper divisors (291344010).

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

201321030 is a wasteful number, since it uses less digits than its factorization.

201321030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 201321030 is about 14188.7642168020. The cubic root of 201321030 is about 586.0882948491.

Adding to 201321030 its reverse (30123102), we get a palindrome (231444132).

The spelling of 201321030 in words is "two hundred one million, three hundred twenty-one thousand, thirty".