11431361 has 8 divisors (see below), whose sum is σ = 12151944. Its totient is φ = 10716160.

The previous prime is 11431349. The next prime is 11431373. The reversal of 11431361 is 16313411.

It is an interprime number because it is at equal distance from previous prime (11431349) and next prime (11431373).

It can be written as a sum of positive squares in 4 ways, for example, as 1062961 + 10368400 = 1031^2 + 3220^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11431361 - 2⁶ = 11431297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11431561) 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 in 7 ways as a sum of consecutive naturals, for example, 3581 + ... + 5973.

It is an arithmetic number, because the mean of its divisors is an integer number (1518993).

Almost surely, 2^11431361 is an apocalyptic number.

It is an amenable number.

11431361 is a deficient number, since it is larger than the sum of its proper divisors (720583).

11431361 is a wasteful number, since it uses less digits than its factorization.

11431361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691.

The product of its digits is 216, while the sum is 20.

The square root of 11431361 is about 3381.0295769188. The cubic root of 11431361 is about 225.2679014664.

Adding to 11431361 its reverse (16313411), we get a palindrome (27744772).

The spelling of 11431361 in words is "eleven million, four hundred thirty-one thousand, three hundred sixty-one".