1311101240266 has 8 divisors (see below), whose sum is σ = 1966673018880. Its totient is φ = 655543567308.

The previous prime is 1311101240263. The next prime is 1311101240279. The reversal of 1311101240266 is 6620421011131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1311101240263) by changing a digit.

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, 3290896 + ... + 3667723.

It is an arithmetic number, because the mean of its divisors is an integer number (245834127360).

Almost surely, 2^{1311101240266} is an apocalyptic number.

1311101240266 is a deficient number, since it is larger than the sum of its proper divisors (655571778614).

1311101240266 is an equidigital number, since it uses as much as digits as its factorization.

1311101240266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052828.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 1311101240266 its reverse (6620421011131), we get a palindrome (7931522251397).

The spelling of 1311101240266 in words is "one trillion, three hundred eleven billion, one hundred one million, two hundred forty thousand, two hundred sixty-six".