11309401 has 4 divisors (see below), whose sum is σ = 11319012. Its totient is φ = 11299792.

The previous prime is 11309393. The next prime is 11309411. The reversal of 11309401 is 10490311.

It is a happy number.

11309401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10490311 = 13 ⋅806947.

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 1550025 = 3124^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 11309401 - 2³ = 11309393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11309411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2746 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (2829753).

Almost surely, 2^11309401 is an apocalyptic number.

11309401 is the 2746-th pentagonal number.

It is an amenable number.

11309401 is a deficient number, since it is larger than the sum of its proper divisors (9611).

11309401 is an equidigital number, since it uses as much as digits as its factorization.

11309401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9610.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 11309401 is about 3362.9452865011. The cubic root of 11309401 is about 224.4639155103.

Adding to 11309401 its reverse (10490311), we get a palindrome (21799712).

The spelling of 11309401 in words is "eleven million, three hundred nine thousand, four hundred one".