1312101122911 has 2 divisors, whose sum is σ = 1312101122912. Its totient is φ = 1312101122910.

The previous prime is 1312101122887. The next prime is 1312101123013. The reversal of 1312101122911 is 1192211012131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312101122911 - 2⁵ = 1312101122879 is a prime.

It is a super-2 number, since 2×1312101122911² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312101123911) 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, 656050561455 + 656050561456.

It is an arithmetic number, because the mean of its divisors is an integer number (656050561456).

Almost surely, 2^{1312101122911} is an apocalyptic number.

1312101122911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312101122911 is an equidigital number, since it uses as much as digits as its factorization.

1312101122911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 25.

The spelling of 1312101122911 in words is "one trillion, three hundred twelve billion, one hundred one million, one hundred twenty-two thousand, nine hundred eleven".