11129320 has 16 divisors (see below), whose sum is σ = 25041060. Its totient is φ = 4451712.

The previous prime is 11129297. The next prime is 11129323. The reversal of 11129320 is 2392111.

11129320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11035684 + 93636 = 3322^2 + 306^2 .

It is not an unprimeable number, because it can be changed into a prime (11129323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139077 + ... + 139156.

Almost surely, 2^11129320 is an apocalyptic number.

11129320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11129320 is an abundant number, since it is smaller than the sum of its proper divisors (13911740).

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

11129320 is a wasteful number, since it uses less digits than its factorization.

11129320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278244 (or 278240 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 11129320 is about 3336.0635485554. The cubic root of 11129320 is about 223.2661464688.

It can be divided in two parts, 11129 and 320, that added together give a square (11449 = 107²).

The spelling of 11129320 in words is "eleven million, one hundred twenty-nine thousand, three hundred twenty".