1312630705361 has 4 divisors (see below), whose sum is σ = 1326162980772. Its totient is φ = 1299098429952.

The previous prime is 1312630705307. The next prime is 1312630705367. The reversal of 1312630705361 is 1635070362131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 602455392400 + 710175312961 = 776180^2 + 842719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312630705361 - 2¹⁰ = 1312630704337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312630705367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6766137560 + ... + 6766137753.

It is an arithmetic number, because the mean of its divisors is an integer number (331540745193).

Almost surely, 2^{1312630705361} is an apocalyptic number.

It is an amenable number.

1312630705361 is a deficient number, since it is larger than the sum of its proper divisors (13532275411).

1312630705361 is an equidigital number, since it uses as much as digits as its factorization.

1312630705361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13532275410.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 1312630705361 in words is "one trillion, three hundred twelve billion, six hundred thirty million, seven hundred five thousand, three hundred sixty-one".