1312220124329 has 2 divisors, whose sum is σ = 1312220124330. Its totient is φ = 1312220124328.

The previous prime is 1312220124301. The next prime is 1312220124419. The reversal of 1312220124329 is 9234210222131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1253582533225 + 58637591104 = 1119635^2 + 242152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312220124329 - 2⁸ = 1312220124073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312220124295 and 1312220124304.

It is not a weakly prime, because it can be changed into another prime (1312220124529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656110062164 + 656110062165.

It is an arithmetic number, because the mean of its divisors is an integer number (656110062165).

Almost surely, 2^{1312220124329} is an apocalyptic number.

It is an amenable number.

1312220124329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312220124329 is an equidigital number, since it uses as much as digits as its factorization.

1312220124329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 1312220124329 in words is "one trillion, three hundred twelve billion, two hundred twenty million, one hundred twenty-four thousand, three hundred twenty-nine".