11130020018 has 16 divisors (see below), whose sum is σ = 18157279896. Its totient is φ = 5086070400.

The previous prime is 11130020017. The next prime is 11130020129. The reversal of 11130020018 is 81002003111.

11130020018 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9596749369 + 1533270649 = 97963^2 + 39157^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11130019978 and 11130020005.

It is not an unprimeable number, because it can be changed into a prime (11130020017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116571 + ... + 2121822.

Almost surely, 2^11130020018 is an apocalyptic number.

11130020018 is a deficient number, since it is larger than the sum of its proper divisors (7027259878).

11130020018 is a wasteful number, since it uses less digits than its factorization.

11130020018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238509.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11130020018 its reverse (81002003111), we get a palindrome (92132023129).

The spelling of 11130020018 in words is "eleven billion, one hundred thirty million, twenty thousand, eighteen".