11503036404 has 36 divisors (see below), whose sum is σ = 29080735684. Its totient is φ = 3833868672.

The previous prime is 11503036361. The next prime is 11503036423. The reversal of 11503036404 is 40463030511.

11503036404 is a `hidden beast` number, since 1 + 15 + 0 + 3 + 0 + 3 + 640 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2006144100 + 9496892304 = 44790^2 + 97452^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388824 + ... + 417360.

Almost surely, 2^11503036404 is an apocalyptic number.

It is an amenable number.

11503036404 is an abundant number, since it is smaller than the sum of its proper divisors (17577699280).

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

11503036404 is a wasteful number, since it uses less digits than its factorization.

11503036404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39744 (or 39739 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 11503036404 its reverse (40463030511), we get a palindrome (51966066915).

The spelling of 11503036404 in words is "eleven billion, five hundred three million, thirty-six thousand, four hundred four".