1312230226169 has 2 divisors, whose sum is σ = 1312230226170. Its totient is φ = 1312230226168.

The previous prime is 1312230226157. The next prime is 1312230226187. The reversal of 1312230226169 is 9616220322131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769414928569 + 542815297600 = 877163^2 + 736760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312230226169 is a prime.

It is a super-2 number, since 2×1312230226169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312230226189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656115113084 + 656115113085.

It is an arithmetic number, because the mean of its divisors is an integer number (656115113085).

Almost surely, 2^{1312230226169} is an apocalyptic number.

It is an amenable number.

1312230226169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312230226169 is an equidigital number, since it uses as much as digits as its factorization.

1312230226169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 1312230226169 in words is "one trillion, three hundred twelve billion, two hundred thirty million, two hundred twenty-six thousand, one hundred sixty-nine".