11155305541 has 2 divisors, whose sum is σ = 11155305542. Its totient is φ = 11155305540.

The previous prime is 11155305533. The next prime is 11155305571. The reversal of 11155305541 is 14550355111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8373165025 + 2782140516 = 91505^2 + 52746^2 .

It is an emirp because it is prime and its reverse (14550355111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11155305541 - 2³ = 11155305533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11155305571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577652770 + 5577652771.

It is an arithmetic number, because the mean of its divisors is an integer number (5577652771).

Almost surely, 2^11155305541 is an apocalyptic number.

It is an amenable number.

11155305541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155305541 is an equidigital number, since it uses as much as digits as its factorization.

11155305541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 11155305541 in words is "eleven billion, one hundred fifty-five million, three hundred five thousand, five hundred forty-one".