1331322323311 has 2 divisors, whose sum is σ = 1331322323312. Its totient is φ = 1331322323310.

The previous prime is 1331322323291. The next prime is 1331322323323. The reversal of 1331322323311 is 1133232231331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331322323311 - 2¹⁹ = 1331321799023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331322323311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331322323351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665661161655 + 665661161656.

It is an arithmetic number, because the mean of its divisors is an integer number (665661161656).

Almost surely, 2^{1331322323311} is an apocalyptic number.

1331322323311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331322323311 is an equidigital number, since it uses as much as digits as its factorization.

1331322323311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 28.

Adding to 1331322323311 its reverse (1133232231331), we get a palindrome (2464554554642).

The spelling of 1331322323311 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-two million, three hundred twenty-three thousand, three hundred eleven".