120541540555109 has 2 divisors, whose sum is σ = 120541540555110. Its totient is φ = 120541540555108.

The previous prime is 120541540555103. The next prime is 120541540555129. The reversal of 120541540555109 is 901555045145021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95873530999009 + 24668009556100 = 9791503^2 + 4966690^2 .

It is a cyclic number.

It is not a de Polignac number, because 120541540555109 - 2¹² = 120541540551013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120541540555103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60270770277554 + 60270770277555.

It is an arithmetic number, because the mean of its divisors is an integer number (60270770277555).

Almost surely, 2^{120541540555109} is an apocalyptic number.

It is an amenable number.

120541540555109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120541540555109 is an equidigital number, since it uses as much as digits as its factorization.

120541540555109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900000, while the sum is 47.

The spelling of 120541540555109 in words is "one hundred twenty trillion, five hundred forty-one billion, five hundred forty million, five hundred fifty-five thousand, one hundred nine".