110012081 has 2 divisors, whose sum is σ = 110012082.
Its totient is φ = 110012080.
The previous prime is 110012069. The next prime is 110012113. The reversal of 110012081 is 180210011.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 77704225 + 32307856 = 8815^2 + 5684^2
It is an emirp because it is prime and its reverse (180210011) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-110012081 is a prime.
It is a super-2 number, since 2×1100120812 = 24205315931901122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (110012011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55006040 + 55006041.
It is an arithmetic number, because the mean of its divisors is an integer number (55006041).
Almost surely, 2110012081 is an apocalyptic number.
It is an amenable number.
110012081 is a deficient number, since it is larger than the sum of its proper divisors (1).
110012081 is an equidigital number, since it uses as much as digits as its factorization.
110012081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 16, while the sum is 14.
The square root of 110012081 is about 10488.6644049660.
The cubic root of 110012081 is about 479.1595260167.
Adding to 110012081 its reverse (180210011), we get a palindrome (290222092).
The spelling of 110012081 in words is "one hundred ten million, twelve thousand, eighty-one".