1312131303211 has 4 divisors (see below), whose sum is σ = 1319715877392. Its totient is φ = 1304546729032.

The previous prime is 1312131303181. The next prime is 1312131303229. The reversal of 1312131303211 is 1123031312131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312131303211 - 2⁵ = 1312131303179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312132303211) 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, 3792286831 + ... + 3792287176.

It is an arithmetic number, because the mean of its divisors is an integer number (329928969348).

Almost surely, 2^{1312131303211} is an apocalyptic number.

1312131303211 is a deficient number, since it is larger than the sum of its proper divisors (7584574181).

1312131303211 is an equidigital number, since it uses as much as digits as its factorization.

1312131303211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584574180.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1312131303211 its reverse (1123031312131), we get a palindrome (2435162615342).

The spelling of 1312131303211 in words is "one trillion, three hundred twelve billion, one hundred thirty-one million, three hundred three thousand, two hundred eleven".