1311102035513 has 4 divisors (see below), whose sum is σ = 1346537225700. Its totient is φ = 1275666845328.

The previous prime is 1311102035501. The next prime is 1311102035531. The reversal of 1311102035513 is 3155302011131.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 716372646544 + 594729388969 = 846388^2 + 771187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311102035513 - 2¹⁶ = 1311101969977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311102335513) 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, 17717595038 + ... + 17717595111.

It is an arithmetic number, because the mean of its divisors is an integer number (336634306425).

Almost surely, 2^{1311102035513} is an apocalyptic number.

It is an amenable number.

1311102035513 is a deficient number, since it is larger than the sum of its proper divisors (35435190187).

1311102035513 is an equidigital number, since it uses as much as digits as its factorization.

1311102035513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35435190186.

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 1311102035513 its reverse (3155302011131), we get a palindrome (4466404046644).

The spelling of 1311102035513 in words is "one trillion, three hundred eleven billion, one hundred two million, thirty-five thousand, five hundred thirteen".