1315261130266 has 32 divisors (see below), whose sum is σ = 2096315020800. Its totient is φ = 617145272640.

The previous prime is 1315261130231. The next prime is 1315261130297. The reversal of 1315261130266 is 6620311625131.

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 15 ways as a sum of consecutive naturals, for example, 17080471 + ... + 17157301.

It is an arithmetic number, because the mean of its divisors is an integer number (65509844400).

Almost surely, 2^{1315261130266} is an apocalyptic number.

1315261130266 is a deficient number, since it is larger than the sum of its proper divisors (781053890534).

1315261130266 is a wasteful number, since it uses less digits than its factorization.

1315261130266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81094.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 1315261130266 its reverse (6620311625131), we get a palindrome (7935572755397).

The spelling of 1315261130266 in words is "one trillion, three hundred fifteen billion, two hundred sixty-one million, one hundred thirty thousand, two hundred sixty-six".