110405453509909 has 2 divisors, whose sum is σ = 110405453509910. Its totient is φ = 110405453509908.

The previous prime is 110405453509907. The next prime is 110405453509927. The reversal of 110405453509909 is 909905354504011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100569408264900 + 9836045245009 = 10028430^2 + 3136247^2 .

It is a cyclic number.

It is not a de Polignac number, because 110405453509909 - 2¹ = 110405453509907 is a prime.

It is a super-2 number, since 2×110405453509909² (a number of 29 digits) contains 22 as substring.

Together with 110405453509907, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 110405453509909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110405453509907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55202726754954 + 55202726754955.

It is an arithmetic number, because the mean of its divisors is an integer number (55202726754955).

Almost surely, 2^{110405453509909} is an apocalyptic number.

It is an amenable number.

110405453509909 is a deficient number, since it is larger than the sum of its proper divisors (1).

110405453509909 is an equidigital number, since it uses as much as digits as its factorization.

110405453509909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374000, while the sum is 55.

The spelling of 110405453509909 in words is "one hundred ten trillion, four hundred five billion, four hundred fifty-three million, five hundred nine thousand, nine hundred nine".