1331133231163 has 2 divisors, whose sum is σ = 1331133231164. Its totient is φ = 1331133231162.

The previous prime is 1331133231161. The next prime is 1331133231227. The reversal of 1331133231163 is 3611323311331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331133231163 - 2¹ = 1331133231161 is a prime.

Together with 1331133231161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1331133231161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665566615581 + 665566615582.

It is an arithmetic number, because the mean of its divisors is an integer number (665566615582).

Almost surely, 2^{1331133231163} is an apocalyptic number.

1331133231163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331133231163 is an equidigital number, since it uses as much as digits as its factorization.

1331133231163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 31.

Adding to 1331133231163 its reverse (3611323311331), we get a palindrome (4942456542494).

The spelling of 1331133231163 in words is "one trillion, three hundred thirty-one billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred sixty-three".