1312542942356 has 6 divisors (see below), whose sum is σ = 2296950149130. Its totient is φ = 656271471176.

The previous prime is 1312542942257. The next prime is 1312542942371. The reversal of 1312542942356 is 6532492452131.

It can be written as a sum of positive squares in only one way, i.e., 984294157456 + 328248784900 = 992116^2 + 572930^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1312542942356.

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, 164067867791 + ... + 164067867798.

It is an arithmetic number, because the mean of its divisors is an integer number (382825024855).

Almost surely, 2^{1312542942356} is an apocalyptic number.

It is an amenable number.

1312542942356 is a deficient number, since it is larger than the sum of its proper divisors (984407206774).

1312542942356 is a wasteful number, since it uses less digits than its factorization.

1312542942356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328135735593 (or 328135735591 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 47.

The spelling of 1312542942356 in words is "one trillion, three hundred twelve billion, five hundred forty-two million, nine hundred forty-two thousand, three hundred fifty-six".