109810716121 has 2 divisors, whose sum is σ = 109810716122. Its totient is φ = 109810716120.

The previous prime is 109810716097. The next prime is 109810716139. The reversal of 109810716121 is 121617018901.

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., 83254754521 + 26555961600 = 288539^2 + 162960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109810716121 is a prime.

It is not a weakly prime, because it can be changed into another prime (109810716221) 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, 54905358060 + 54905358061.

It is an arithmetic number, because the mean of its divisors is an integer number (54905358061).

Almost surely, 2^109810716121 is an apocalyptic number.

It is an amenable number.

109810716121 is a deficient number, since it is larger than the sum of its proper divisors (1).

109810716121 is an equidigital number, since it uses as much as digits as its factorization.

109810716121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 37.

The spelling of 109810716121 in words is "one hundred nine billion, eight hundred ten million, seven hundred sixteen thousand, one hundred twenty-one".