11061603 has 36 divisors (see below), whose sum is σ = 19295640. Its totient is φ = 6314112.

The previous prime is 11061581. The next prime is 11061607. The reversal of 11061603 is 30616011.

11061603 is a `hidden beast` number, since 1 + 1 + 0 + 61 + 603 = 666.

It is not a de Polignac number, because 11061603 - 2⁵ = 11061571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11061607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11443 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (535990).

Almost surely, 2^11061603 is an apocalyptic number.

11061603 is a deficient number, since it is larger than the sum of its proper divisors (8234037).

11061603 is an frugal number, since it uses more digits than its factorization.

11061603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 11061603 is about 3325.8988258815. The cubic root of 11061603 is about 222.8123996185.

Adding to 11061603 its reverse (30616011), we get a palindrome (41677614).

It can be divided in two parts, 11061 and 603, that added together give a square (11664 = 108²).

The spelling of 11061603 in words is "eleven million, sixty-one thousand, six hundred three".