1311357775311 has 8 divisors (see below), whose sum is σ = 1942752259760. Its totient is φ = 874238516856.

The previous prime is 1311357775199. The next prime is 1311357775313. The reversal of 1311357775311 is 1135777531131.

1311357775311 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 3 + 577 + 75 + 3 + 1 + 1 = 666.

It is not a de Polignac number, because 1311357775311 - 2¹¹ = 1311357773263 is a prime.

It is a super-2 number, since 2×1311357775311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311357775313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24284403220 + ... + 24284403273.

It is an arithmetic number, because the mean of its divisors is an integer number (242844032470).

Almost surely, 2^{1311357775311} is an apocalyptic number.

1311357775311 is a deficient number, since it is larger than the sum of its proper divisors (631394484449).

1311357775311 is an equidigital number, since it uses as much as digits as its factorization.

1311357775311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48568806502 (or 48568806496 counting only the distinct ones).

The product of its digits is 231525, while the sum is 45.

The spelling of 1311357775311 in words is "one trillion, three hundred eleven billion, three hundred fifty-seven million, seven hundred seventy-five thousand, three hundred eleven".