2331330161 has 2 divisors, whose sum is σ = 2331330162. Its totient is φ = 2331330160.

The previous prime is 2331330091. The next prime is 2331330217. The reversal of 2331330161 is 1610331332.

It is a happy number.

2331330161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2021041936 + 310288225 = 44956^2 + 17615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331330161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2331338161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165665080 + 1165665081.

It is an arithmetic number, because the mean of its divisors is an integer number (1165665081).

Almost surely, 2^2331330161 is an apocalyptic number.

It is an amenable number.

2331330161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331330161 is an equidigital number, since it uses as much as digits as its factorization.

2331330161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 2331330161 is about 48283.8498982838. The cubic root of 2331330161 is about 1325.9727350433.

Adding to 2331330161 its reverse (1610331332), we get a palindrome (3941661493).

The spelling of 2331330161 in words is "two billion, three hundred thirty-one million, three hundred thirty thousand, one hundred sixty-one".