201304331 has 4 divisors (see below), whose sum is σ = 204604464. Its totient is φ = 198004200.

The previous prime is 201304321. The next prime is 201304351. The reversal of 201304331 is 133403102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201304331 is a prime.

It is a super-2 number, since 2×201304331² = 81046867358715122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201304321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649975 + ... + 1650096.

It is an arithmetic number, because the mean of its divisors is an integer number (51151116).

Almost surely, 2^201304331 is an apocalyptic number.

201304331 is a deficient number, since it is larger than the sum of its proper divisors (3300133).

201304331 is an equidigital number, since it uses as much as digits as its factorization.

201304331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300132.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 201304331 is about 14188.1757460218. The cubic root of 201304331 is about 586.0720896219.

Adding to 201304331 its reverse (133403102), we get a palindrome (334707433).

The spelling of 201304331 in words is "two hundred one million, three hundred four thousand, three hundred thirty-one".