11111060513 has 12 divisors (see below), whose sum is σ = 13137001812. Its totient is φ = 9367636320.

The previous prime is 11111060489. The next prime is 11111060531. The reversal of 11111060513 is 31506011111.

It can be written as a sum of positive squares in 2 ways, for example, as 4333325584 + 6777734929 = 65828^2 + 82327^2 .

It is not a de Polignac number, because 11111060513 - 2⁶ = 11111060449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11111060533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1855670 + ... + 1861647.

It is an arithmetic number, because the mean of its divisors is an integer number (1094750151).

Almost surely, 2^11111060513 is an apocalyptic number.

It is an amenable number.

11111060513 is a deficient number, since it is larger than the sum of its proper divisors (2025941299).

11111060513 is an equidigital number, since it uses as much as digits as its factorization.

11111060513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717392 (or 3717385 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 20.

Adding to 11111060513 its reverse (31506011111), we get a palindrome (42617071624).

The spelling of 11111060513 in words is "eleven billion, one hundred eleven million, sixty thousand, five hundred thirteen".