11042001 has 20 divisors (see below), whose sum is σ = 17214912. Its totient is φ = 7040088.

The previous prime is 11041999. The next prime is 11042029. The reversal of 11042001 is 10024011.

It is a happy number.

11042001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11042001 - 2¹ = 11041999 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 (11042081) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1101 + ... + 4826.

Almost surely, 2^11042001 is an apocalyptic number.

It is an amenable number.

11042001 is a deficient number, since it is larger than the sum of its proper divisors (6172911).

11042001 is an equidigital number, since it uses as much as digits as its factorization.

11042001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5962 (or 5953 counting only the distinct ones).

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

The square root of 11042001 is about 3322.9506466392. The cubic root of 11042001 is about 222.6807083049.

Adding to 11042001 its reverse (10024011), we get a palindrome (21066012).

The spelling of 11042001 in words is "eleven million, forty-two thousand, one".