1311133164265 has 32 divisors (see below), whose sum is σ = 1630258430976. Its totient is φ = 1011586928640.

The previous prime is 1311133164259. The next prime is 1311133164277. The reversal of 1311133164265 is 5624613311131.

It is a de Polignac number, because none of the positive numbers 2^k-1311133164265 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17122554 + ... + 17198956.

It is an arithmetic number, because the mean of its divisors is an integer number (50945575968).

Almost surely, 2^{1311133164265} is an apocalyptic number.

It is an amenable number.

1311133164265 is a deficient number, since it is larger than the sum of its proper divisors (319125266711).

1311133164265 is an equidigital number, since it uses as much as digits as its factorization.

1311133164265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77409.

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

Adding to 1311133164265 its reverse (5624613311131), we get a palindrome (6935746475396).

The spelling of 1311133164265 in words is "one trillion, three hundred eleven billion, one hundred thirty-three million, one hundred sixty-four thousand, two hundred sixty-five".