11007121 has 2 divisors, whose sum is σ = 11007122. Its totient is φ = 11007120.

The previous prime is 11007119. The next prime is 11007127. The reversal of 11007121 is 12170011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8620096 + 2387025 = 2936^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 11007121 - 2¹ = 11007119 is a prime.

Together with 11007119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11007127) 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 as a sum of consecutive naturals, namely, 5503560 + 5503561.

It is an arithmetic number, because the mean of its divisors is an integer number (5503561).

Almost surely, 2^11007121 is an apocalyptic number.

It is an amenable number.

11007121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11007121 is an equidigital number, since it uses as much as digits as its factorization.

11007121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 11007121 is about 3317.6981478127. The cubic root of 11007121 is about 222.4459894994.

Adding to 11007121 its reverse (12170011), we get a palindrome (23177132).

The spelling of 11007121 in words is "eleven million, seven thousand, one hundred twenty-one".