1120001 has 2 divisors, whose sum is σ = 1120002. Its totient is φ = 1120000.

The previous prime is 1119959. The next prime is 1120019. The reversal of 1120001 is 1000211.

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 + 19600 = 1049^2 + 140^2 .

It is an emirp because it is prime and its reverse (1000211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120001 - 2¹⁴ = 1103617 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 (1120051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560000 + 560001.

It is an arithmetic number, because the mean of its divisors is an integer number (560001).

2^1120001 is an apocalyptic number.

It is an amenable number.

1120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120001 is an equidigital number, since it uses as much as digits as its factorization.

1120001 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1120001 is about 1058.3009968813. The cubic root of 1120001 is about 103.8499129447.

Adding to 1120001 its reverse (1000211), we get a palindrome (2120212).

Multiplying 1120001 by its reverse (1000211), we get a palindrome (1120237320211).

The spelling of 1120001 in words is "one million, one hundred twenty thousand, one".