331420442141 has 2 divisors, whose sum is σ = 331420442142. Its totient is φ = 331420442140.

The previous prime is 331420442033. The next prime is 331420442147. The reversal of 331420442141 is 141244024133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289260033241 + 42160408900 = 537829^2 + 205330^2 .

It is a cyclic number.

It is not a de Polignac number, because 331420442141 - 2¹⁸ = 331420179997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331420442147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165710221070 + 165710221071.

It is an arithmetic number, because the mean of its divisors is an integer number (165710221071).

Almost surely, 2^331420442141 is an apocalyptic number.

It is an amenable number.

331420442141 is a deficient number, since it is larger than the sum of its proper divisors (1).

331420442141 is an equidigital number, since it uses as much as digits as its factorization.

331420442141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 331420442141 its reverse (141244024133), we get a palindrome (472664466274).

The spelling of 331420442141 in words is "three hundred thirty-one billion, four hundred twenty million, four hundred forty-two thousand, one hundred forty-one".