11311541 has 2 divisors, whose sum is σ = 11311542. Its totient is φ = 11311540.

The previous prime is 11311523. The next prime is 11311567. The reversal of 11311541 is 14511311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7022500 + 4289041 = 2650^2 + 2071^2 .

It is an emirp because it is prime and its reverse (14511311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11311541 - 2¹⁰ = 11310517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11311571) 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, 5655770 + 5655771.

It is an arithmetic number, because the mean of its divisors is an integer number (5655771).

Almost surely, 2^11311541 is an apocalyptic number.

It is an amenable number.

11311541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311541 is an equidigital number, since it uses as much as digits as its factorization.

11311541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60, while the sum is 17.

The square root of 11311541 is about 3363.2634449296. The cubic root of 11311541 is about 224.4780725372.

Adding to 11311541 its reverse (14511311), we get a palindrome (25822852).

The spelling of 11311541 in words is "eleven million, three hundred eleven thousand, five hundred forty-one".