1311003323137 has 2 divisors, whose sum is σ = 1311003323138. Its totient is φ = 1311003323136.

The previous prime is 1311003323117. The next prime is 1311003323153. The reversal of 1311003323137 is 7313233001131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885539342961 + 425463980176 = 941031^2 + 652276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311003323137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311003323117) 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 as a sum of consecutive naturals, namely, 655501661568 + 655501661569.

It is an arithmetic number, because the mean of its divisors is an integer number (655501661569).

Almost surely, 2^{1311003323137} is an apocalyptic number.

It is an amenable number.

1311003323137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311003323137 is an equidigital number, since it uses as much as digits as its factorization.

1311003323137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 28.

Adding to 1311003323137 its reverse (7313233001131), we get a palindrome (8624236324268).

The spelling of 1311003323137 in words is "one trillion, three hundred eleven billion, three million, three hundred twenty-three thousand, one hundred thirty-seven".