110346720721 has 2 divisors, whose sum is σ = 110346720722. Its totient is φ = 110346720720.

The previous prime is 110346720713. The next prime is 110346720739. The reversal of 110346720721 is 127027643011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66506736321 + 43839984400 = 257889^2 + 209380^2 .

It is an emirp because it is prime and its reverse (127027643011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110346720721 - 2³ = 110346720713 is a prime.

It is not a weakly prime, because it can be changed into another prime (110346720821) 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, 55173360360 + 55173360361.

It is an arithmetic number, because the mean of its divisors is an integer number (55173360361).

Almost surely, 2^110346720721 is an apocalyptic number.

It is an amenable number.

110346720721 is a deficient number, since it is larger than the sum of its proper divisors (1).

110346720721 is an equidigital number, since it uses as much as digits as its factorization.

110346720721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 110346720721 in words is "one hundred ten billion, three hundred forty-six million, seven hundred twenty thousand, seven hundred twenty-one".