331130101 has 2 divisors, whose sum is σ = 331130102. Its totient is φ = 331130100.

The previous prime is 331130089. The next prime is 331130171. The reversal of 331130101 is 101031133.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236359876 + 94770225 = 15374^2 + 9735^2 .

It is a cyclic number.

It is not a de Polignac number, because 331130101 - 2⁵ = 331130069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331130171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165565050 + 165565051.

It is an arithmetic number, because the mean of its divisors is an integer number (165565051).

Almost surely, 2^331130101 is an apocalyptic number.

It is an amenable number.

331130101 is a deficient number, since it is larger than the sum of its proper divisors (1).

331130101 is an equidigital number, since it uses as much as digits as its factorization.

331130101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 331130101 is about 18196.9805462335. The cubic root of 331130101 is about 691.8302602214.

Adding to 331130101 its reverse (101031133), we get a palindrome (432161234).

The spelling of 331130101 in words is "three hundred thirty-one million, one hundred thirty thousand, one hundred one".