111164030881 has 2 divisors, whose sum is σ = 111164030882. Its totient is φ = 111164030880.

The previous prime is 111164030867. The next prime is 111164030917. The reversal of 111164030881 is 188030461111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70487595025 + 40676435856 = 265495^2 + 201684^2 .

It is a cyclic number.

It is not a de Polignac number, because 111164030881 - 2¹³ = 111164022689 is a prime.

It is a super-2 number, since 2×111164030881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111164030851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55582015440 + 55582015441.

It is an arithmetic number, because the mean of its divisors is an integer number (55582015441).

Almost surely, 2^111164030881 is an apocalyptic number.

It is an amenable number.

111164030881 is a deficient number, since it is larger than the sum of its proper divisors (1).

111164030881 is an equidigital number, since it uses as much as digits as its factorization.

111164030881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

Adding to 111164030881 its reverse (188030461111), we get a palindrome (299194491992).

The spelling of 111164030881 in words is "one hundred eleven billion, one hundred sixty-four million, thirty thousand, eight hundred eighty-one".