1312143424244 has 6 divisors (see below), whose sum is σ = 2296250992434. Its totient is φ = 656071712120.

The previous prime is 1312143424187. The next prime is 1312143424261. The reversal of 1312143424244 is 4424243412131.

It can be written as a sum of positive squares in only one way, i.e., 1133028255844 + 179115168400 = 1064438^2 + 423220^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164017928027 + ... + 164017928034.

It is an arithmetic number, because the mean of its divisors is an integer number (382708498739).

Almost surely, 2^{1312143424244} is an apocalyptic number.

It is an amenable number.

1312143424244 is a deficient number, since it is larger than the sum of its proper divisors (984107568190).

1312143424244 is a wasteful number, since it uses less digits than its factorization.

1312143424244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328035856065 (or 328035856063 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

Adding to 1312143424244 its reverse (4424243412131), we get a palindrome (5736386836375).

The spelling of 1312143424244 in words is "one trillion, three hundred twelve billion, one hundred forty-three million, four hundred twenty-four thousand, two hundred forty-four".