1312311302111 has 2 divisors, whose sum is σ = 1312311302112. Its totient is φ = 1312311302110.

The previous prime is 1312311302063. The next prime is 1312311302123. The reversal of 1312311302111 is 1112031132131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312311302111 - 2¹⁰ = 1312311301087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312311302161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656155651055 + 656155651056.

It is an arithmetic number, because the mean of its divisors is an integer number (656155651056).

Almost surely, 2^{1312311302111} is an apocalyptic number.

1312311302111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312311302111 is an equidigital number, since it uses as much as digits as its factorization.

1312311302111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1312311302111 its reverse (1112031132131), we get a palindrome (2424342434242).

The spelling of 1312311302111 in words is "one trillion, three hundred twelve billion, three hundred eleven million, three hundred two thousand, one hundred eleven".