331132201 has 2 divisors, whose sum is σ = 331132202. Its totient is φ = 331132200.

The previous prime is 331132199. The next prime is 331132211. The reversal of 331132201 is 102231133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234090000 + 97042201 = 15300^2 + 9851^2 .

It is an emirp because it is prime and its reverse (102231133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331132201 - 2¹ = 331132199 is a prime.

Together with 331132199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (331132211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165566100 + 165566101.

It is an arithmetic number, because the mean of its divisors is an integer number (165566101).

Almost surely, 2^331132201 is an apocalyptic number.

It is an amenable number.

331132201 is a deficient number, since it is larger than the sum of its proper divisors (1).

331132201 is an equidigital number, since it uses as much as digits as its factorization.

331132201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 331132201 is about 18197.0382480227. The cubic root of 331132201 is about 691.8317227286.

Adding to 331132201 its reverse (102231133), we get a palindrome (433363334).

The spelling of 331132201 in words is "three hundred thirty-one million, one hundred thirty-two thousand, two hundred one".