331130201 has 2 divisors, whose sum is σ = 331130202. Its totient is φ = 331130200.

The previous prime is 331130197. The next prime is 331130209. The reversal of 331130201 is 102031133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176252176 + 154878025 = 13276^2 + 12445^2 .

It is a cyclic number.

It is not a de Polignac number, because 331130201 - 2² = 331130197 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331130209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165565100 + 165565101.

It is an arithmetic number, because the mean of its divisors is an integer number (165565101).

Almost surely, 2^331130201 is an apocalyptic number.

It is an amenable number.

331130201 is a deficient number, since it is larger than the sum of its proper divisors (1).

331130201 is an equidigital number, since it uses as much as digits as its factorization.

331130201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 331130201 is about 18196.9832939419. The cubic root of 331130201 is about 691.8303298648.

Adding to 331130201 its reverse (102031133), we get a palindrome (433161334).

The spelling of 331130201 in words is "three hundred thirty-one million, one hundred thirty thousand, two hundred one".