201031330 has 16 divisors (see below), whose sum is σ = 362703744. Its totient is φ = 80224240.

The previous prime is 201031319. The next prime is 201031351. The reversal of 201031330 is 33130102.

It is a self number, because there is not a number n which added to its sum of digits gives 201031330.

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 7 ways as a sum of consecutive naturals, for example, 19012 + ... + 27631.

It is an arithmetic number, because the mean of its divisors is an integer number (22668984).

Almost surely, 2^201031330 is an apocalyptic number.

201031330 is a deficient number, since it is larger than the sum of its proper divisors (161672414).

201031330 is a wasteful number, since it uses less digits than its factorization.

201031330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47081.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 201031330 is about 14178.5517596121. The cubic root of 201031330 is about 585.8070338097.

Adding to 201031330 its reverse (33130102), we get a palindrome (234161432).

The spelling of 201031330 in words is "two hundred one million, thirty-one thousand, three hundred thirty".