1102001 has 2 divisors, whose sum is σ = 1102002. Its totient is φ = 1102000.

The previous prime is 1101967. The next prime is 1102007. The reversal of 1102001 is 1002011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100401 + 1600 = 1049^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102001 - 2⁶ = 1101937 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1102007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551000 + 551001.

It is an arithmetic number, because the mean of its divisors is an integer number (551001).

2^1102001 is an apocalyptic number.

It is an amenable number.

1102001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102001 is an equidigital number, since it uses as much as digits as its factorization.

1102001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1102001 is about 1049.7623540592. The cubic root of 1102001 is about 103.2905673419.

Adding to 1102001 its reverse (1002011), we get a palindrome (2104012).

Multiplying 1102001 by its reverse (1002011), we get a palindrome (1104217124011).

The spelling of 1102001 in words is "one million, one hundred two thousand, one".