11123040204 has 36 divisors (see below), whose sum is σ = 29157930984. Its totient is φ = 3707679744.

The previous prime is 11123040167. The next prime is 11123040221. The reversal of 11123040204 is 40204032111.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5720757 + ... + 5722700.

Almost surely, 2^11123040204 is an apocalyptic number.

It is an amenable number.

11123040204 is an abundant number, since it is smaller than the sum of its proper divisors (18034890780).

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

11123040204 is a wasteful number, since it uses less digits than its factorization.

11123040204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11443476 (or 11443462 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11123040204 its reverse (40204032111), we get a palindrome (51327072315).

The spelling of 11123040204 in words is "eleven billion, one hundred twenty-three million, forty thousand, two hundred four".