1252212819413 has 2 divisors, whose sum is σ = 1252212819414. Its totient is φ = 1252212819412.

The previous prime is 1252212819343. The next prime is 1252212819433. The reversal of 1252212819413 is 3149182122521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 961197885649 + 291014933764 = 980407^2 + 539458^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252212819413 - 2¹⁸ = 1252212557269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252212819433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626106409706 + 626106409707.

It is an arithmetic number, because the mean of its divisors is an integer number (626106409707).

Almost surely, 2^{1252212819413} is an apocalyptic number.

It is an amenable number.

1252212819413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252212819413 is an equidigital number, since it uses as much as digits as its factorization.

1252212819413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The spelling of 1252212819413 in words is "one trillion, two hundred fifty-two billion, two hundred twelve million, eight hundred nineteen thousand, four hundred thirteen".