11520128 has 16 divisors (see below), whose sum is σ = 22950510. Its totient is φ = 5760000.

The previous prime is 11520083. The next prime is 11520191. The reversal of 11520128 is 82102511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5798464 + 5721664 = 2408^2 + 2392^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44873 + ... + 45128.

Almost surely, 2^11520128 is an apocalyptic number.

It is an amenable number.

11520128 is a deficient number, since it is larger than the sum of its proper divisors (11430382).

11520128 is an frugal number, since it uses more digits than its factorization.

11520128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90015 (or 90003 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 11520128 is about 3394.1314058239. The cubic root of 11520128 is about 225.8494834048.

Adding to 11520128 its reverse (82102511), we get a palindrome (93622639).

The spelling of 11520128 in words is "eleven million, five hundred twenty thousand, one hundred twenty-eight".