11123016804 has 36 divisors (see below), whose sum is σ = 28714742784. Its totient is φ = 3628785072.

The previous prime is 11123016791. The next prime is 11123016809. The reversal of 11123016804 is 40861032111.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (11123016809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3285252 + ... + 3288635.

It is an arithmetic number, because the mean of its divisors is an integer number (797631744).

Almost surely, 2^11123016804 is an apocalyptic number.

It is an amenable number.

11123016804 is an abundant number, since it is smaller than the sum of its proper divisors (17591725980).

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

11123016804 is a wasteful number, since it uses less digits than its factorization.

11123016804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573944 (or 6573939 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 11123016804 its reverse (40861032111), we get a palindrome (51984048915).

The spelling of 11123016804 in words is "eleven billion, one hundred twenty-three million, sixteen thousand, eight hundred four".