110112123809 has 2 divisors, whose sum is σ = 110112123810. Its totient is φ = 110112123808.

The previous prime is 110112123787. The next prime is 110112123817. The reversal of 110112123809 is 908321211011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110107830625 + 4293184 = 331825^2 + 2072^2 .

It is a cyclic number.

It is not a de Polignac number, because 110112123809 - 2²⁴ = 110095346593 is a prime.

It is not a weakly prime, because it can be changed into another prime (110112123829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55056061904 + 55056061905.

It is an arithmetic number, because the mean of its divisors is an integer number (55056061905).

Almost surely, 2^110112123809 is an apocalyptic number.

It is an amenable number.

110112123809 is a deficient number, since it is larger than the sum of its proper divisors (1).

110112123809 is an equidigital number, since it uses as much as digits as its factorization.

110112123809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 110112123809 in words is "one hundred ten billion, one hundred twelve million, one hundred twenty-three thousand, eight hundred nine".