11128401 has 16 divisors (see below), whose sum is σ = 16537920. Its totient is φ = 7395840.

The previous prime is 11128399. The next prime is 11128417. The reversal of 11128401 is 10482111.

11128401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11128401 - 2¹ = 11128399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11128441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16986 + ... + 17628.

It is an arithmetic number, because the mean of its divisors is an integer number (1033620).

Almost surely, 2^11128401 is an apocalyptic number.

It is an amenable number.

11128401 is a deficient number, since it is larger than the sum of its proper divisors (5409519).

11128401 is an equidigital number, since it uses as much as digits as its factorization.

11128401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 11128401 is about 3335.9258085275. The cubic root of 11128401 is about 223.2600009230.

The spelling of 11128401 in words is "eleven million, one hundred twenty-eight thousand, four hundred one".