11145045517 has 4 divisors (see below), whose sum is σ = 11731626880. Its totient is φ = 10558464156.

The previous prime is 11145045493. The next prime is 11145045523. The reversal of 11145045517 is 71554054111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71554054111 = 607 ⋅117881473.

It is a cyclic number.

It is not a de Polignac number, because 11145045517 - 2⁷ = 11145045389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145045547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293290653 + ... + 293290690.

It is an arithmetic number, because the mean of its divisors is an integer number (2932906720).

Almost surely, 2^11145045517 is an apocalyptic number.

It is an amenable number.

11145045517 is a deficient number, since it is larger than the sum of its proper divisors (586581363).

11145045517 is an equidigital number, since it uses as much as digits as its factorization.

11145045517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586581362.

The product of its (nonzero) digits is 14000, while the sum is 34.

Adding to 11145045517 its reverse (71554054111), we get a palindrome (82699099628).

The spelling of 11145045517 in words is "eleven billion, one hundred forty-five million, forty-five thousand, five hundred seventeen".