11204001 has 32 divisors (see below), whose sum is σ = 17318400. Its totient is φ = 7243344.

The previous prime is 11203993. The next prime is 11204009. The reversal of 11204001 is 10040211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11203993) and next prime (11204009).

It is not a de Polignac number, because 11204001 - 2³ = 11203993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11204009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102735 + ... + 102843.

It is an arithmetic number, because the mean of its divisors is an integer number (541200).

Almost surely, 2^11204001 is an apocalyptic number.

It is an amenable number.

11204001 is a deficient number, since it is larger than the sum of its proper divisors (6114399).

11204001 is an frugal number, since it uses more digits than its factorization.

11204001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 11204001 is about 3347.2378164690. The cubic root of 11204001 is about 223.7644273543.

Adding to 11204001 its reverse (10040211), we get a palindrome (21244212).

The spelling of 11204001 in words is "eleven million, two hundred four thousand, one".