11129004018 has 32 divisors (see below), whose sum is σ = 26979405120. Its totient is φ = 3372425280.

The previous prime is 11129004017. The next prime is 11129004119. The reversal of 11129004018 is 81040092111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11129003982 and 11129004000.

It is not an unprimeable number, because it can be changed into a prime (11129004013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9367255 + ... + 9368442.

It is an arithmetic number, because the mean of its divisors is an integer number (843106410).

Almost surely, 2^11129004018 is an apocalyptic number.

11129004018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11129004018 is an abundant number, since it is smaller than the sum of its proper divisors (15850401102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11129004018 is a wasteful number, since it uses less digits than its factorization.

11129004018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18735719 (or 18735713 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

Adding to 11129004018 its reverse (81040092111), we get a palindrome (92169096129).

The spelling of 11129004018 in words is "eleven billion, one hundred twenty-nine million, four thousand, eighteen".