111110001101081 has 2 divisors, whose sum is σ = 111110001101082. Its totient is φ = 111110001101080.

The previous prime is 111110001101041. The next prime is 111110001101119. The reversal of 111110001101081 is 180101100011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92881020750400 + 18228980350681 = 9637480^2 + 4269541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110001101081 is a prime.

It is a super-2 number, since 2×111110001101081² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111110001101041) 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, 55555000550540 + 55555000550541.

It is an arithmetic number, because the mean of its divisors is an integer number (55555000550541).

Almost surely, 2^{111110001101081} is an apocalyptic number.

It is an amenable number.

111110001101081 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110001101081 is an equidigital number, since it uses as much as digits as its factorization.

111110001101081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 111110001101081 its reverse (180101100011111), we get a palindrome (291211101112192).

The spelling of 111110001101081 in words is "one hundred eleven trillion, one hundred ten billion, one million, one hundred one thousand, eighty-one".