11206321541 has 2 divisors, whose sum is σ = 11206321542. Its totient is φ = 11206321540.

The previous prime is 11206321519. The next prime is 11206321559. The reversal of 11206321541 is 14512360211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9949264516 + 1257057025 = 99746^2 + 35455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11206321541 is a prime.

It is a super-2 number, since 2×11206321541² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11206321541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11206321241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5603160770 + 5603160771.

It is an arithmetic number, because the mean of its divisors is an integer number (5603160771).

Almost surely, 2^11206321541 is an apocalyptic number.

It is an amenable number.

11206321541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11206321541 is an equidigital number, since it uses as much as digits as its factorization.

11206321541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 11206321541 its reverse (14512360211), we get a palindrome (25718681752).

The spelling of 11206321541 in words is "eleven billion, two hundred six million, three hundred twenty-one thousand, five hundred forty-one".