120112120109 has 2 divisors, whose sum is σ = 120112120110. Its totient is φ = 120112120108.

The previous prime is 120112120067. The next prime is 120112120147. The reversal of 120112120109 is 901021211021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81136674025 + 38975446084 = 284845^2 + 197422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120112120109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120112120169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60056060054 + 60056060055.

It is an arithmetic number, because the mean of its divisors is an integer number (60056060055).

Almost surely, 2^120112120109 is an apocalyptic number.

It is an amenable number.

120112120109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120112120109 is an equidigital number, since it uses as much as digits as its factorization.

120112120109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 120112120109 in words is "one hundred twenty billion, one hundred twelve million, one hundred twenty thousand, one hundred nine".