1312043355344 has 40 divisors (see below), whose sum is σ = 2550118939680. Its totient is φ = 653950136448.

The previous prime is 1312043355319. The next prime is 1312043355383. The reversal of 1312043355344 is 4435533402131.

It is a junction number, because it is equal to n+sod(n) for n = 1312043355298 and 1312043355307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10662779 + ... + 10785125.

It is an arithmetic number, because the mean of its divisors is an integer number (63752973492).

Almost surely, 2^{1312043355344} is an apocalyptic number.

It is an amenable number.

1312043355344 is a deficient number, since it is larger than the sum of its proper divisors (1238075584336).

1312043355344 is a wasteful number, since it uses less digits than its factorization.

1312043355344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124467 (or 124461 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 1312043355344 its reverse (4435533402131), we get a palindrome (5747576757475).

The spelling of 1312043355344 in words is "one trillion, three hundred twelve billion, forty-three million, three hundred fifty-five thousand, three hundred forty-four".