1312451242429 has 2 divisors, whose sum is σ = 1312451242430. Its totient is φ = 1312451242428.

The previous prime is 1312451242423. The next prime is 1312451242481. The reversal of 1312451242429 is 9242421542131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184592792100 + 127858450329 = 1088390^2 + 357573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312451242429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312451242391 and 1312451242400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312451242423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656225621214 + 656225621215.

It is an arithmetic number, because the mean of its divisors is an integer number (656225621215).

Almost surely, 2^{1312451242429} is an apocalyptic number.

It is an amenable number.

1312451242429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312451242429 is an equidigital number, since it uses as much as digits as its factorization.

1312451242429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The spelling of 1312451242429 in words is "one trillion, three hundred twelve billion, four hundred fifty-one million, two hundred forty-two thousand, four hundred twenty-nine".