201021304 has 32 divisors (see below), whose sum is σ = 411758640. Its totient is φ = 91244800.

The previous prime is 201021283. The next prime is 201021323. The reversal of 201021304 is 403120102.

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 7 ways as a sum of consecutive naturals, for example, 92292 + ... + 94444.

Almost surely, 2^201021304 is an apocalyptic number.

It is an amenable number.

201021304 is an abundant number, since it is smaller than the sum of its proper divisors (210737336).

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

201021304 is a wasteful number, since it uses less digits than its factorization.

201021304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231 (or 3227 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 201021304 is about 14178.1981930004. The cubic root of 201021304 is about 585.7972950309.

Adding to 201021304 its reverse (403120102), we get a palindrome (604141406).

The spelling of 201021304 in words is "two hundred one million, twenty-one thousand, three hundred four".