1311134041121 has 4 divisors (see below), whose sum is σ = 1312518555312. Its totient is φ = 1309749526932.

The previous prime is 1311134041099. The next prime is 1311134041123. The reversal of 1311134041121 is 1211404311131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1311134041121 - 2⁶ = 1311134041057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311134041123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 692255675 + ... + 692257568.

It is an arithmetic number, because the mean of its divisors is an integer number (328129638828).

Almost surely, 2^{1311134041121} is an apocalyptic number.

It is an amenable number.

1311134041121 is a deficient number, since it is larger than the sum of its proper divisors (1384514191).

1311134041121 is an equidigital number, since it uses as much as digits as its factorization.

1311134041121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384514190.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 1311134041121 its reverse (1211404311131), we get a palindrome (2522538352252).

The spelling of 1311134041121 in words is "one trillion, three hundred eleven billion, one hundred thirty-four million, forty-one thousand, one hundred twenty-one".