1311102061777 has 2 divisors, whose sum is σ = 1311102061778. Its totient is φ = 1311102061776.

The previous prime is 1311102061771. The next prime is 1311102061861. The reversal of 1311102061777 is 7771602011131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 832225605696 + 478876456081 = 912264^2 + 692009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311102061777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311102061771) 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, 655551030888 + 655551030889.

It is an arithmetic number, because the mean of its divisors is an integer number (655551030889).

Almost surely, 2^{1311102061777} is an apocalyptic number.

It is an amenable number.

1311102061777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311102061777 is an equidigital number, since it uses as much as digits as its factorization.

1311102061777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12348, while the sum is 37.

The spelling of 1311102061777 in words is "one trillion, three hundred eleven billion, one hundred two million, sixty-one thousand, seven hundred seventy-seven".