11041005513 has 4 divisors (see below), whose sum is σ = 14721340688. Its totient is φ = 7360670340.

The previous prime is 11041005511. The next prime is 11041005559. The reversal of 11041005513 is 31550014011.

It is a happy number.

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: 31550014011 = 3 ⋅10516671337.

It is not a de Polignac number, because 11041005513 - 2¹ = 11041005511 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11041005513.

It is not an unprimeable number, because it can be changed into a prime (11041005511) 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, 1840167583 + ... + 1840167588.

It is an arithmetic number, because the mean of its divisors is an integer number (3680335172).

Almost surely, 2^11041005513 is an apocalyptic number.

It is an amenable number.

11041005513 is a deficient number, since it is larger than the sum of its proper divisors (3680335175).

11041005513 is an equidigital number, since it uses as much as digits as its factorization.

11041005513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680335174.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 11041005513 its reverse (31550014011), we get a palindrome (42591019524).

The spelling of 11041005513 in words is "eleven billion, forty-one million, five thousand, five hundred thirteen".