11003641 has 24 divisors (see below), whose sum is σ = 13496544. Its totient is φ = 8864640.

The previous prime is 11003639. The next prime is 11003653. The reversal of 11003641 is 14630011.

It is not a de Polignac number, because 11003641 - 2¹ = 11003639 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11003341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67426 + ... + 67588.

It is an arithmetic number, because the mean of its divisors is an integer number (562356).

Almost surely, 2^11003641 is an apocalyptic number.

11003641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11003641 is a deficient number, since it is larger than the sum of its proper divisors (2492903).

11003641 is a wasteful number, since it uses less digits than its factorization.

11003641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 11003641 is about 3317.1736463441. The cubic root of 11003641 is about 222.4225442637.

Adding to 11003641 its reverse (14630011), we get a palindrome (25633652).

The spelling of 11003641 in words is "eleven million, three thousand, six hundred forty-one".