1312220124343 has 16 divisors (see below), whose sum is σ = 1408247515584. Its totient is φ = 1218367733760.

The previous prime is 1312220124329. The next prime is 1312220124419. The reversal of 1312220124343 is 3434210222131.

It is a cyclic number.

It is not a de Polignac number, because 1312220124343 - 2⁹ = 1312220123831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312220124643) 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 in 15 ways as a sum of consecutive naturals, for example, 766530 + ... + 1792207.

It is an arithmetic number, because the mean of its divisors is an integer number (88015469724).

Almost surely, 2^{1312220124343} is an apocalyptic number.

1312220124343 is a deficient number, since it is larger than the sum of its proper divisors (96027391241).

1312220124343 is a wasteful number, since it uses less digits than its factorization.

1312220124343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559162.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1312220124343 its reverse (3434210222131), we get a palindrome (4746430346474).

The spelling of 1312220124343 in words is "one trillion, three hundred twelve billion, two hundred twenty million, one hundred twenty-four thousand, three hundred forty-three".