1311003323053 has 2 divisors, whose sum is σ = 1311003323054. Its totient is φ = 1311003323052.

The previous prime is 1311003323011. The next prime is 1311003323117. The reversal of 1311003323053 is 3503233001131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 898091696329 + 412911626724 = 947677^2 + 642582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311003323053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311003323153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655501661526 + 655501661527.

It is an arithmetic number, because the mean of its divisors is an integer number (655501661527).

Almost surely, 2^{1311003323053} is an apocalyptic number.

It is an amenable number.

1311003323053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311003323053 is an equidigital number, since it uses as much as digits as its factorization.

1311003323053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 1311003323053 its reverse (3503233001131), we get a palindrome (4814236324184).

The spelling of 1311003323053 in words is "one trillion, three hundred eleven billion, three million, three hundred twenty-three thousand, fifty-three".