11503072 has 48 divisors (see below), whose sum is σ = 26218080. Its totient is φ = 4866048.

The previous prime is 11503057. The next prime is 11503091. The reversal of 11503072 is 27030511.

11503072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19648 + ... + 20224.

It is an arithmetic number, because the mean of its divisors is an integer number (546210).

Almost surely, 2^11503072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11503072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13109040).

11503072 is an abundant number, since it is smaller than the sum of its proper divisors (14715008).

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

11503072 is an equidigital number, since it uses as much as digits as its factorization.

11503072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 11503072 is about 3391.6179030074. The cubic root of 11503072 is about 225.7379686887.

Adding to 11503072 its reverse (27030511), we get a palindrome (38533583).

The spelling of 11503072 in words is "eleven million, five hundred three thousand, seventy-two".