312312101213269 has 2 divisors, whose sum is σ = 312312101213270. Its totient is φ = 312312101213268.

The previous prime is 312312101213159. The next prime is 312312101213381. The reversal of 312312101213269 is 962312101213213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216836963398225 + 95475137815044 = 14725385^2 + 9771138^2 .

It is an emirp because it is prime and its reverse (962312101213213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312312101213269 - 2⁴³ = 303516008191061 is a prime.

It is a super-2 number, since 2×312312101213269² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312312101213669) 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, 156156050606634 + 156156050606635.

It is an arithmetic number, because the mean of its divisors is an integer number (156156050606635).

Almost surely, 2^{312312101213269} is an apocalyptic number.

It is an amenable number.

312312101213269 is a deficient number, since it is larger than the sum of its proper divisors (1).

312312101213269 is an equidigital number, since it uses as much as digits as its factorization.

312312101213269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 312312101213269 in words is "three hundred twelve trillion, three hundred twelve billion, one hundred one million, two hundred thirteen thousand, two hundred sixty-nine".