11331301081 has 2 divisors, whose sum is σ = 11331301082. Its totient is φ = 11331301080.

The previous prime is 11331301067. The next prime is 11331301087. The reversal of 11331301081 is 18010313311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9271956681 + 2059344400 = 96291^2 + 45380^2 .

It is an emirp because it is prime and its reverse (18010313311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11331301081 - 2¹¹ = 11331299033 is a prime.

It is a super-2 number, since 2×11331301081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11331301087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665650540 + 5665650541.

It is an arithmetic number, because the mean of its divisors is an integer number (5665650541).

Almost surely, 2^11331301081 is an apocalyptic number.

It is an amenable number.

11331301081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331301081 is an equidigital number, since it uses as much as digits as its factorization.

11331301081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11331301081 its reverse (18010313311), we get a palindrome (29341614392).

The spelling of 11331301081 in words is "eleven billion, three hundred thirty-one million, three hundred one thousand, eighty-one".