1310803886842 has 4 divisors (see below), whose sum is σ = 1966205830266. Its totient is φ = 655401943420.

The previous prime is 1310803886773. The next prime is 1310803886863. The reversal of 1310803886842 is 2486883080131.

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

It can be written as a sum of positive squares in only one way, i.e., 1178221240681 + 132582646161 = 1085459^2 + 364119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1310803886842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327700971709 + ... + 327700971712.

Almost surely, 2^{1310803886842} is an apocalyptic number.

1310803886842 is a deficient number, since it is larger than the sum of its proper divisors (655401943424).

1310803886842 is an equidigital number, since it uses as much as digits as its factorization.

1310803886842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655401943423.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 1310803886842 in words is "one trillion, three hundred ten billion, eight hundred three million, eight hundred eighty-six thousand, eight hundred forty-two".