1320111303311 has 2 divisors, whose sum is σ = 1320111303312. Its totient is φ = 1320111303310.

The previous prime is 1320111303307. The next prime is 1320111303323. The reversal of 1320111303311 is 1133031110231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320111303311 - 2² = 1320111303307 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320111353311) 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, 660055651655 + 660055651656.

It is an arithmetic number, because the mean of its divisors is an integer number (660055651656).

Almost surely, 2^{1320111303311} is an apocalyptic number.

1320111303311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320111303311 is an equidigital number, since it uses as much as digits as its factorization.

1320111303311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1320111303311 its reverse (1133031110231), we get a palindrome (2453142413542).

The spelling of 1320111303311 in words is "one trillion, three hundred twenty billion, one hundred eleven million, three hundred three thousand, three hundred eleven".