1276355110111 has 2 divisors, whose sum is σ = 1276355110112. Its totient is φ = 1276355110110.

The previous prime is 1276355110039. The next prime is 1276355110123. The reversal of 1276355110111 is 1110115536721.

It is a strong prime.

It is an emirp because it is prime and its reverse (1110115536721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1276355110111 - 2⁷ = 1276355109983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276355110141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638177555055 + 638177555056.

It is an arithmetic number, because the mean of its divisors is an integer number (638177555056).

Almost surely, 2^{1276355110111} is an apocalyptic number.

1276355110111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276355110111 is an equidigital number, since it uses as much as digits as its factorization.

1276355110111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 34.

The spelling of 1276355110111 in words is "one trillion, two hundred seventy-six billion, three hundred fifty-five million, one hundred ten thousand, one hundred eleven".