11012001 has 64 divisors (see below), whose sum is σ = 20858880. Its totient is φ = 4976640.

The previous prime is 11011993. The next prime is 11012011. The reversal of 11012001 is 10021011.

It is not a de Polignac number, because 11012001 - 2³ = 11011993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11012011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56961 + ... + 57153.

It is an arithmetic number, because the mean of its divisors is an integer number (325920).

Almost surely, 2^11012001 is an apocalyptic number.

11012001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012001 is a deficient number, since it is larger than the sum of its proper divisors (9846879).

11012001 is a wasteful number, since it uses less digits than its factorization.

11012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 11012001 is about 3318.4335159831. The cubic root of 11012001 is about 222.4788584045.

Adding to 11012001 its reverse (10021011), we get a palindrome (21033012).

Multiplying 11012001 by its reverse (10021011), we get a palindrome (110351383153011).

The spelling of 11012001 in words is "eleven million, twelve thousand, one".