11401001 has 2 divisors, whose sum is σ = 11401002. Its totient is φ = 11401000.

The previous prime is 11400997. The next prime is 11401037. The reversal of 11401001 is 10010411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6885376 + 4515625 = 2624^2 + 2125^2 .

It is an emirp because it is prime and its reverse (10010411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11401001 - 2² = 11400997 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11401001.

It is not a weakly prime, because it can be changed into another prime (11401051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700500 + 5700501.

It is an arithmetic number, because the mean of its divisors is an integer number (5700501).

Almost surely, 2^11401001 is an apocalyptic number.

It is an amenable number.

11401001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11401001 is an equidigital number, since it uses as much as digits as its factorization.

11401001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 11401001 is about 3376.5368352796. The cubic root of 11401001 is about 225.0682986075.

Adding to 11401001 its reverse (10010411), we get a palindrome (21411412).

The spelling of 11401001 in words is "eleven million, four hundred one thousand, one".