11081381327 has 2 divisors, whose sum is σ = 11081381328. Its totient is φ = 11081381326.

The previous prime is 11081381321. The next prime is 11081381387. The reversal of 11081381327 is 72318318011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11081381327 is a prime.

It is a super-2 number, since 2×11081381327² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11081381321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5540690663 + 5540690664.

It is an arithmetic number, because the mean of its divisors is an integer number (5540690664).

Almost surely, 2^11081381327 is an apocalyptic number.

11081381327 is a deficient number, since it is larger than the sum of its proper divisors (1).

11081381327 is an equidigital number, since it uses as much as digits as its factorization.

11081381327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

Adding to 11081381327 its reverse (72318318011), we get a palindrome (83399699338).

The spelling of 11081381327 in words is "eleven billion, eighty-one million, three hundred eighty-one thousand, three hundred twenty-seven".