331240201 has 8 divisors (see below), whose sum is σ = 337010504. Its totient is φ = 325503360.

The previous prime is 331240199. The next prime is 331240207. The reversal of 331240201 is 102042133.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6375625 + 324864576 = 2525^2 + 18024^2 .

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 331240201 - 2¹ = 331240199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331240207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12031 + ... + 28411.

It is an arithmetic number, because the mean of its divisors is an integer number (42126313).

Almost surely, 2^331240201 is an apocalyptic number.

It is an amenable number.

331240201 is a deficient number, since it is larger than the sum of its proper divisors (5770303).

331240201 is a wasteful number, since it uses less digits than its factorization.

331240201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16731.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 331240201 is about 18200.0055219772. The cubic root of 331240201 is about 691.9069290502.

Adding to 331240201 its reverse (102042133), we get a palindrome (433282334).

The spelling of 331240201 in words is "three hundred thirty-one million, two hundred forty thousand, two hundred one".