1312303664356 has 12 divisors (see below), whose sum is σ = 2300277797692. Its totient is φ = 655081436448.

The previous prime is 1312303664303. The next prime is 1312303664387. The reversal of 1312303664356 is 6534663032131.

It can be written as a sum of positive squares in 2 ways, for example, as 48329625600 + 1263974038756 = 219840^2 + 1124266^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 267596175 + ... + 267601078.

Almost surely, 2^{1312303664356} is an apocalyptic number.

It is an amenable number.

1312303664356 is a deficient number, since it is larger than the sum of its proper divisors (987974133336).

1312303664356 is a wasteful number, since it uses less digits than its factorization.

1312303664356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535197870 (or 535197868 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 43.

Adding to 1312303664356 its reverse (6534663032131), we get a palindrome (7846966696487).

The spelling of 1312303664356 in words is "one trillion, three hundred twelve billion, three hundred three million, six hundred sixty-four thousand, three hundred fifty-six".