1320110311249 has 2 divisors, whose sum is σ = 1320110311250. Its totient is φ = 1320110311248.

The previous prime is 1320110311237. The next prime is 1320110311337. The reversal of 1320110311249 is 9421130110231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789298980625 + 530811330624 = 888425^2 + 728568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320110311249 - 2³³ = 1311520376657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320110371249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660055155624 + 660055155625.

It is an arithmetic number, because the mean of its divisors is an integer number (660055155625).

Almost surely, 2^{1320110311249} is an apocalyptic number.

It is an amenable number.

1320110311249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320110311249 is an equidigital number, since it uses as much as digits as its factorization.

1320110311249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1320110311249 in words is "one trillion, three hundred twenty billion, one hundred ten million, three hundred eleven thousand, two hundred forty-nine".